Question

Define the following form:

Atomic number

Answer 1

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. Atomic number is also equal to numbers of electrons in an atom.

For example:

• Atomic number of carbon = 6
• Atomic number of nitrogen = 7
• Atomic number of oxygen = 8
• Atomic number of magnesium = 12