Question

The outer electronic configuration of 2 elements P and Q are 2s1 and 3p5 respectively. Write the chemical formula of the compounds formed by the elements?

Answer 1

Answer:

the formula will be -PQ

Explanation:

since P has 2s1 electrons it can easily donate its one electron and gain 1 positive charge . and Q can recieve one electron to become 3p6 which is a stable electronic configuration.

now after gaining it gains one negative charge .

hence P with one positive charge combines with Q with one negative charge to give the above formula