Question

The atom of an element is written as ²⁷÷13 X
(1) What does the figure 13 indicate?
(it) What is the mass of X?
(iii) What is the number of electrons if it is
charged atom?​

Answer 1

Explanation:

1. 13 indicates the atomic number or number of proton.
2. Mass of X is 27
3. It will 10 electrons when it is charged, as its valency is 3 so it will lose its 3 electrons