The atomic mass of chlorine is 17 u.
True
False
The atomic mass of chlorine is 35.5 u. The atomic number of chlorine is 17. Hence, the given statement is false.
The atomic mass of a carbon is 6 u.
The atomic mass of phosphorous is 31 u.
In the formula MgCl2, the subscript '2' subscript “ 2 “ below Cl indicates the number of atoms of chlorine present in one molecule of magnesium chloride.