A report on Chemical element, Hydrogen and Metal

The chemical elements ordered in the periodic table

The Space Shuttle Main Engine burnt hydrogen with oxygen, producing a nearly invisible flame at full thrust.

Iron, shown here as fragments and a 1 cm3 cube, is an example of a chemical element that is a metal.

$Estimated distribution of dark matter and dark energy in the universe. Only the fraction of the mass and energy in the universe labeled "atoms" is composed of chemical elements.$

Depiction of a hydrogen atom with size of central proton shown, and the atomic diameter shown as about twice the Bohr model radius (image not to scale)

A metal in the form of a gravy boat made from stainless steel, an alloy largely composed of iron, carbon, and chromium

Periodic table showing the cosmogenic origin of each element in the Big Bang, or in large or small stars. Small stars can produce certain elements up to sulfur, by the alpha process. Supernovae are needed to produce "heavy" elements (those beyond iron and nickel) rapidly by neutron buildup, in the r-process. Certain large stars slowly produce other elements heavier than iron, in the s-process; these may then be blown into space in the off-gassing of planetary nebulae

Hydrogen gas is colorless and transparent, here contained in a glass ampoule.

Abundances of the chemical elements in the Solar System. Hydrogen and helium are most common, from the Big Bang. The next three elements (Li, Be, B) are rare because they are poorly synthesized in the Big Bang and also in stars. The two general trends in the remaining stellar-produced elements are: (1) an alternation of abundance in elements as they have even or odd atomic numbers (the Oddo-Harkins rule), and (2) a general decrease in abundance as elements become heavier. Iron is especially common because it represents the minimum energy nuclide that can be made by fusion of helium in supernovae.

Phase diagram of hydrogen. The temperature and pressure scales are logarithmic, so one unit corresponds to a 10x change. The left edge corresponds to 105 Pa, which is about atmospheric pressure.

A metal rod with a hot-worked eyelet. Hot-working exploits the capacity of metal to be plastically deformed.

Mendeleev's 1869 periodic table: An experiment on a system of elements. Based on their atomic weights and chemical similarities.

Samples of babbitt metal, an alloy of tin, antimony, and copper, used in bearings to reduce friction

A sculpture cast in nickel silver—an alloy of copper, nickel, and zinc that looks like silver

Rhodium, a noble metal, shown here as 1 g of powder, a 1 g pressed cylinder, and a 1 g pellet

A sample of diaspore, an aluminum oxide hydroxide mineral, α-AlO(OH)

A neodymium compound alloy magnet of composition Nd2Fe14B on a nickel-iron bracket from a computer hard drive

Hydrogen emission spectrum lines in the visible range. These are the four visible lines of the Balmer series

A pile of compacted steel scraps, ready for recycling

NGC 604, a giant region of ionized hydrogen in the Triangulum Galaxy

The Artemision Bronze showing either Poseidon or Zeus, c. 460 BCE, National Archaeological Museum, Athens. The figure is more than 2 m in height.

A disc of highly enriched uranium that was recovered from scrap processed at the Y-12 National Security Complex, in Oak Ridge, Tennessee

White-hot steel pours like water from a 35-ton electric furnace, at the Allegheny Ludlum Steel Corporation, in Brackenridge, Pennsylvania.

A Ho-Mg-Zn icosahedral quasicrystal formed as a pentagonal dodecahedron, the dual of the icosahedron

Body-centered cubic crystal structure, with a 2-atom unit cell, as found in e.g. chromium, iron, and tungsten

Face-centered cubic crystal structure, with a 4-atom unit cell, as found in e.g. aluminum, copper, and gold

Hexagonal close-packed crystal structure, with a 6-atom unit cell, as found in e.g. titanium, cobalt, and zinc

Niobium crystals and a 1 cm{{sup|3}} anodized niobium cube for comparison

Molybdenum crystals and a 1 cm{{sup|3}} molybdenum cube for comparison

Tantalum single crystal, some crystalline fragments, and a 1 cm{{sup|3}} tantalum cube for comparison

Tungsten rods with evaporated crystals, partially oxidized with colorful tarnish, and a 1 cm{{sup|3}} tungsten cube for comparison

alt=Three, dark broccoli shaped clumps of oxidised lead with grossly distended buds, and a cube of lead which has a dull silvery appearance.| oxidised lead

alt=A silvery molasses-like liquid being poured into a circular container with a height equivalent to a smaller coin on its edge| Mercury being

Electrum, a natural alloy of silver and gold, was often used for making coins. Shown is the Roman god Apollo, and on the obverse, a Delphi tripod (circa 310–305 BCE).

A plate made of pewter, an alloy of 85–99% tin and (usually) copper. Pewter was first used around the beginning of the Bronze Age in the Near East.

A pectoral (ornamental breastplate) made of tumbaga, an alloy of gold and copper

Arsenic, sealed in a container to prevent tarnishing

Bismuth in crystalline form, with a very thin oxidation layer, and a 1 cm{{sup|3}} bismuth cube

Potassium pearls under paraffin oil. Size of the largest pearl is 0.5 cm.

Aluminum chunk, 2.6 grams, {{nowrap|1=1 x 2 cm}}

Scandium, including a 1 cm{{sup|3}} cube

Lutetium, including a 1 cm{{sup|3}} cube

Hydrogen is the chemical element with the symbol H and atomic number 1.

- Hydrogen

A metal may be a chemical element such as iron; an alloy such as stainless steel; or a molecular compound such as polymeric sulfur nitride.

- Metal

The lightest chemical elements are hydrogen and helium, both created by Big Bang nucleosynthesis during the first 20 minutes of the universe in a ratio of around 3:1 by mass (or 12:1 by number of atoms), along with tiny traces of the next two elements, lithium and beryllium.

- Chemical element

Hydrogen also forms compounds with less electronegative elements, such as metals and metalloids, where it takes on a partial negative charge.

- Hydrogen

A first distinction is between metals, which readily conduct electricity, nonmetals, which do not, and a small group, (the metalloids), having intermediate properties and often behaving as semiconductors.

- Chemical element

In chemistry, the term base metal is used informally to refer to a metal that is easily oxidized or corroded, such as reacting easily with dilute hydrochloric acid (HCl) to form a metal chloride and hydrogen.

- Metal

6 related topics with Alpha

Joseph Priestley is usually given priority in the discovery.

Oxygen

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Antoine Lavoisier discredited the phlogiston theory.

Robert H. Goddard and a liquid oxygen-gasoline rocket

An experiment setup for preparation of oxygen in academic laboratories

Orbital diagram, after Barrett (2002), showing the participating atomic orbitals from each oxygen atom, the molecular orbitals that result from their overlap, and the aufbau filling of the orbitals with the 12 electrons, 6 from each O atom, beginning from the lowest-energy orbitals, and resulting in covalent double-bond character from filled orbitals (and cancellation of the contributions of the pairs of σ and σ* and π and π* orbital pairs).

Liquid oxygen, temporarily suspended in a magnet owing to its paramagnetism

Space-filling model representation of dioxygen (O2) molecule

Late in a massive star's life, 16O concentrates in the O-shell, 17O in the H-shell and 18O in the He-shell.

500 million years of climate change vs. 18O

Photosynthesis splits water to liberate and fixes into sugar in what is called a Calvin cycle.

build-up in Earth's atmosphere: 1) no produced; 2) produced, but absorbed in oceans & seabed rock; 3) starts to gas out of the oceans, but is absorbed by land surfaces and formation of ozone layer; 4–5) sinks filled and the gas accumulates

Hofmann electrolysis apparatus used in electrolysis of water.

Oxygen and MAPP gas compressed-gas cylinders with regulators

An oxygen concentrator in an emphysema patient's house

Low pressure pure is used in space suits.

Most commercially produced is used to smelt and/or decarburize iron.

Water is the most familiar oxygen compound.

Oxides, such as iron oxide or rust, form when oxygen combines with other elements.

The interior of the Apollo 1 Command Module. Pure at higher than normal pressure and a spark led to a fire and the loss of the Apollo 1 crew.

Oxygen is the chemical element with the symbol O and atomic number 8.

Oxygen is Earth's most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe.

Common uses of oxygen include production of steel, plastics and textiles, brazing, welding and cutting of steels and other metals, rocket propellant, oxygen therapy, and life support systems in aircraft, submarines, spaceflight and diving.

Periodic table highlighting the first row of each block. Helium (He), as a noble gas, is normally shown over neon (Ne) with the rest of the noble gases. The elements within scope of this article are inside the thick black borders. The status of oganesson (Og, element 118) is not yet known.

Nonmetal

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[[File:Nonmetals in the periodic table.png|thumb|upright=0.85|

Electronegativity values of the group 16 chalcogen elements showing a W-shaped alternation or secondary periodicity going down the group

Modern periodic table extract showing nonmetal subclasses.
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† moderately strong oxidising agent
‡ strong oxidising agent

A small (about 2 cm long) piece of rapidly melting argon ice

A cluster of purple fluorite, a fluorine mineral, between two quartzes

Selenium conducts electricity around 1,000 times better when light falls on it, a property used since the mid-1870s in light-sensing applications.

A crystal of realgar, also known as "ruby sulphur" or "ruby of arsenic", an arsenic sulfide mineral As4S4

Brownish crystals of buckminsterfullerene С60, a semiconducting allotrope of carbon

Germanium occurs in some zinc-copper-lead ore bodies, in quantities sufficient to justify extraction. The pure form costs $360 per 100 grams, as at February 2022.

In chemistry, a nonmetal is a chemical element that generally lacks a predominance of metallic properties; they range from colorless gases (like hydrogen) to shiny and high melting point solids (like boron).

Carbon

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Some allotropes of carbon: a) diamond; b) graphite; c) lonsdaleite; d–f) fullerenes (C60, C540, C70); g) amorphous carbon; h) carbon nanotube

Comet C/2014 Q2 (Lovejoy) surrounded by glowing carbon vapor

Graphite ore, shown with a penny for scale

"Present day" (1990s) sea surface dissolved inorganic carbon concentration (from the GLODAP climatology)

Diagram of the carbon cycle. The black numbers indicate how much carbon is stored in various reservoirs, in billions tonnes ("GtC" stands for gigatonnes of carbon; figures are circa 2004). The purple numbers indicate how much carbon moves between reservoirs each year. The sediments, as defined in this diagram, do not include the ≈70 million GtC of carbonate rock and kerogen.

Structural formula of methane, the simplest possible organic compound.

Correlation between the carbon cycle and formation of organic compounds. In plants, carbon dioxide formed by carbon fixation can join with water in photosynthesis ( green ) to form organic compounds, which can be used and further converted by both plants and animals.

This anthracene derivative contains a carbon atom with 5 formal electron pairs around it.

Pencil leads for mechanical pencils are made of graphite (often mixed with a clay or synthetic binder).

Worker at carbon black plant in Sunray, Texas (photo by John Vachon, 1942)

Carbon (from carbo "coal") is a chemical element with the symbol C and atomic number 6.

Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen.

This results in a lower bulk electrical conductivity for carbon than for most metals.

Iron

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Magnetization curves of 9 ferromagnetic materials, showing saturation. 1.Sheet steel, 2.Silicon steel, 3.Cast steel, 4.Tungsten steel, 5.Magnet steel, 6.Cast iron, 7.Nickel, 8.Cobalt, 9.Magnetite

A polished and chemically etched piece of an iron meteorite, believed to be similar in composition to the Earth's metallic core, showing individual crystals of the iron-nickel alloy (Widmanstatten pattern)

Banded iron formation in McKinley Park, Minnesota.

Hydrated iron(III) chloride (ferric chloride)

Comparison of colors of solutions of ferrate (left) and permanganate (right)

Blue-green iron(II) sulfate heptahydrate

The two enantiomorphs of the ferrioxalate ion

Crystal structure of iron(II) oxalate dihydrate, showing iron (gray), oxygen (red), carbon (black), and hydrogen (white) atoms.

Blood-red positive thiocyanate test for iron(III)

Iron harpoon head from Greenland. The iron edge covers a narwhal tusk harpoon using meteorite iron from the Cape York meteorite, one of the largest iron meteorites known.

The symbol for Mars has been used since antiquity to represent iron.

The iron pillar of Delhi is an example of the iron extraction and processing methodologies of early India.

Coalbrookdale by Night, 1801. Blast furnaces light the iron making town of Coalbrookdale.

"Gold gab ich für Eisen" – "I gave gold for iron". German-American brooch from WWI.

17th century Chinese illustration of workers at a blast furnace, making wrought iron from pig iron

How iron was extracted in the 19th century

This heap of iron ore pellets will be used in steel production.

A pot of molten iron being used to make steel

Photon mass attenuation coefficient for iron.

Structure of Heme b; in the protein additional ligand(s) would be attached to Fe.

A heme unit of human carboxyhemoglobin, showing the carbonyl ligand at the apical position, trans to the histidine residue

Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.

It is a metal that belongs to the first transition series and group 8 of the periodic table.

In 1774, Antoine Lavoisier used the reaction of water steam with metallic iron inside an incandescent iron tube to produce hydrogen in his experiments leading to the demonstration of the conservation of mass, which was instrumental in changing chemistry from a qualitative science to a quantitative one.

High-resolution STEM-HAADF micrograph of Al atoms viewed along the [001] zone axis.

Aluminium

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Aluminium hydrolysis as a function of pH. Coordinated water molecules are omitted. (Data from Baes and Mesmer)

Structure of trimethylaluminium, a compound that features five-coordinate carbon.

Bauxite, a major aluminium ore. The red-brown color is due to the presence of iron oxide minerals.

The statue of Anteros in Piccadilly Circus, London, was made in 1893 and is one of the first statues cast in aluminium.

World production of aluminium since 1900

1897 American advertisement featuring the aluminum spelling

Common bins for recyclable waste along with a bin for unrecyclable waste. The bin with a yellow top is labeled "aluminum". Rhodes, Greece.

Aluminium-bodied Austin A40 Sports (c. 1951)

Laser deposition of alumina on a substrate

Schematic of aluminium absorption by human skin.

There are five major aluminium forms absorbed by human body: the free solvated trivalent cation (Al3+(aq)); low-molecular-weight, neutral, soluble complexes (LMW-Al0(aq)); high-molecular-weight, neutral, soluble complexes (HMW-Al0(aq)); low-molecular-weight, charged, soluble complexes (LMW-Al(L)n+/−(aq)); nano and micro-particulates (Al(L)n(s)). They are transported across cell membranes or cell epi-/endothelia through five major routes: (1) paracellular; (2) transcellular; (3) active transport; (4) channels; (5) adsorptive or receptor-mediated endocytosis.

"Bauxite tailings" storage facility in Stade, Germany. The aluminium industry generates about 70 million tons of this waste annually.

Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13.

Aluminium has a density lower than those of other common metals, at approximately one third that of steel.

It reacts with water, releasing a mixture of gases (including, among others, hydrogen, acetylene, and ammonia), which spontaneously ignites on contact with air; contact with damp air results in the release of copious quantities of ammonia gas.

Copper-germanium alloy pellets, likely ~84% Cu; 16% Ge. When combined with silver the result is a tarnish resistant sterling silver. Also shown are two silver pellets.

Metalloid

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Arsenic trioxide or white arsenic, one of the most toxic and prevalent forms of arsenic. The antileukaemic properties of white arsenic were first reported in 1878.

Optical fibers, usually made of pure silicon dioxide glass, with additives such as boron trioxide or germanium dioxide for increased sensitivity

Archaic blue light signal, fuelled by a mixture of sodium nitrate, sulfur, and (red) arsenic trisulfide

Semiconductor-based electronic components. From left to right: a transistor, an integrated circuit, and an LED. The elements commonly recognised as metalloids find widespread use in such devices, as elemental or compound semiconductor constituents (Si, Ge or GaAs, for example) or as doping agents (B, Sb, Te, for example).

Boron, shown here in the form of its β-rhombohedral phase (its most thermodynamically stable allotrope)

Silicon has a blue-grey metallic lustre.

Germanium is sometimes described as a metal

Tellurium, described by Dmitri Mendeleev as forming a transition between metals and nonmetals

Carbon (as graphite). Delocalized valence electrons within the layers of graphite give it a metallic appearance.

High purity aluminium is much softer than its familiar alloys. People who handle it for the first time often ask if it is the real thing.

Grey selenium, being a photoconductor, conducts electricity around 1,000 times better when light falls on it, a property used since the mid-1870s in various light-sensing applications

Iodine crystals, showing a metallic lustre. Iodine is a semiconductor in the direction of its planes, with a band gap of ~1.3 eV. It has an electrical conductivity of 1.7 × 10−8 S•cm−1 at room temperature. This is higher than selenium but lower than boron, the least electrically conducting of the recognised metalloids.

White tin (left) and grey tin (right). Both forms have a metallic appearance.

A metalloid is a type of chemical element which has a preponderance of properties in between, or that are a mixture of, those of metals and nonmetals.

Silicon dissolves in hot aqueous alkalis with the evolution of hydrogen, as do metals such as beryllium, aluminium, zinc, gallium or indium.