A report on Atom, Proton, Atomic nucleus, Hydrogen and Chemical element
An atom is the smallest unit of ordinary matter that forms a chemical element.- Atom
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment.- Atomic nucleus
Hydrogen is the chemical element with the symbol H and atomic number 1.- Hydrogen
A chemical element is a species of atoms that have a given number of protons in their nuclei, including the pure substance consisting only of that species.- Chemical element
One or more protons are present in the nucleus of every atom.- Proton
Every atom is composed of a nucleus and one or more electrons bound to the nucleus.- Atom
The nucleus is made of one or more protons and a number of neutrons.- Atom
The diameter of the nucleus is in the range of 1.7 fm (1.7 m ) for hydrogen (the diameter of a single proton) to about 11.7 fm for uranium.- Atomic nucleus
Only the most common variety of hydrogen has no neutrons.- Atom
Since each element has a unique number of protons, each element has its own unique atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element.- Proton
For the most common isotope of hydrogen (symbol 1H) each atom has one proton, one electron, and no neutrons.- Hydrogen
In previous years, Rutherford had discovered that the hydrogen nucleus (known to be the lightest nucleus) could be extracted from the nuclei of nitrogen by atomic collisions.- Proton
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
Which chemical element an atom represents is determined by the number of protons in the nucleus; the neutral atom will have an equal number of electrons orbiting that nucleus.- Atomic nucleus
Oxidation of hydrogen removes its electron and gives H+, which contains no electrons and a nucleus which is usually composed of one proton.- Hydrogen
1 related topic with Alpha
The neutron is a subatomic particle, symbol or, which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton.
Protons and neutrons constitute the nuclei of atoms.
Atoms of a chemical element that differ only in neutron number are called isotopes.
Neutrons are required for the stability of nuclei, with the exception of the single-proton hydrogen nucleus.