One of the mysteries of the English language finally explained.
The number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
- ‘In a neutral atom, the number of electrons is equal to the number of protons, therefore, the atomic number also indicates the number of electrons in an atom.’
- ‘There, elements are arranged according to their atomic number - the number of protons in the nuclei.’
- ‘The higher the atomic number, the more shells and electrons an atom will have.’
- ‘We now have data on the properties of 29 new nuclei with atomic numbers between 104 and 118.’
- ‘Heavy metals are metallic elements that have a high atomic number and are poisonous to living organisms.’
- ‘In those cases in which the number of protons changes, the new nucleus has a different atomic number, and it therefore belongs to a different element.’
- ‘The existence of an element with an atomic number of 21 was predicted in 1869 by Dmitri Mendeleev.’
- ‘When you move down the periodic table, as the atomic numbers increase, the elements become rarer.’
Top tips for CV writingRead more
In this article we explore how to impress employers with a spot-on CV.