Fill in the following blanks :

Atomic Number	Mass Number	Protons	Neutrons	Electrons	Symbol
10	22	................	................	................	................

Fill in the following blanks in respect of an atom of an element :

Fill in the following blanks in respect of an atom of an element :

Complete the following table.

Complete the following table relating to the atomic structure of some elements.

$\begin{array}{cccccc}\text{Element}& \text{Atomic}& \text{Mass}& \text{Number of}& \text{Number of}& \text{Number of}\\ \text{Symbol}& \text{Number}& \text{Number}& \text{Neutrons}& \text{Electrons}& \text{Protons}\\ Li& 3& 6& & & \\ Cl& 17& & 20& & \\ Na& & & 12& & 11\\ Al& & 27& & & 13\\ S& & 32& 16& & \end{array}$

Question 19
Complete the following table.
$\begin{array}{cccccc}\text{Atomic number}& \text{Mass number}& \text{Number of neutrons}& \text{Number of protons}& \text{Number of electrons}& \text{Name of the atomic species}\\ 9& -& 10& -& -& -\\ 16& 32& -& -& -& \text{Sulphur}\\ -& 24& -& 12& -& -\\ -& 2& -& 1& -& -\\ -& 1& 0& 1& 0& -\end{array}$