Question

Element A,B,C and D have atomic number 11,8,1 and 17 respectively . Give the
Formula of the Compound formed between (a) A and B   (b)  B and C

Answer 1

Answer:

according to your info, A and B will form A2B formula. and B and C will form BC formula.

Explanation:

Electronic config of:

A=2,8,1

B=2,6

C=1

D=2,8,7

Solution:

(a) A will lose 1 electron, whereas B needs 2 electrons!

so the formula is:

A2B

(b) B needs 2 electrons, C needs 1 electrons.

so formula= BC2