How many `g` atoms are there in one atoms?

How many particles are there in an atom?

How many atoms are there in one molecule of sulphur ?

How many atoms are present in one gram atomic mass of a substance ?

How many atoms are there in a cube based unit cell having one atom on each comer and two atoms on each body diagonal ?

An element has atomic number 13 and an atomic mass of 27 (a) How many electrons are there in each atom of the element ? (a) How many electrons are there in each atom of the element ? (b) How are these electrons distributed in the various energy levels ?