Question

There are three elements E , F , G with atomic number 19 , 8 and 17 respectively. Give tje the molecular formula of the compound formed between E and G and state the type of chemical bond in this compound.


plz answer fast........

Answer 1

elec. conf. 
E = 2,8,1       valency = 1+
F = 2,6
G = 2,8,7       valency = 1-

molecular formula of compound = E1G1 = EG
BOND = Electrovalent or ionic bond (indicated by large electronegativity difference.)

Answer 2

The electronic configuration of E is 2,8,8,1 while that of G is 2,8,7.

Hence, EG forms an ionic bond as E looses one electron and gains octet configuration while G accepts one electron and completes octet.

E+G→E

+

G

−

Therefore, the formula of compound formed between E and G is EG.