Question

What is meant by (i atomic number one
H tamic mass of an element ? Explain with
the hell of an example​

Answer 1

Answer:

• Atomic number is the total number of protons present in the nucleus of an atom. It is also equal to the number of electrons for a neutral atom. Example, atomic number of sodium is 11. ii) Mass number is the number of protons and neutrons in the nucleus taken together. For example, mass number of sodium is 23 g/mol.

Answer 2

Atomic number is the total munber of protons and electrons present in an atom.

e.g. Atomic number of Helium is 1, sodium is 11 e.t.c.