Question

Give the correct ionic charge of the following elements in binary ionic compounds. Include + or - sign and give the magnitude. K, CA, BA, AL, GA, Zn, Cl, Br, O, S, N, P

Answer 1

1) In the periodic table those which are present at left side called as alkali metals of alkali earth metals which carries + charge with magnitude 1 and 2, respectively.

2) P group elements are having more non metallic behaviour. From left to right in period, non metallic behaviour increases. All halogens are having one electron less to complete their octate. Thus they posses -1 charge. Elements in oxygen family are suffering two electrons less to complete their octate. Thus they possess -2 charge.

In binary ionic compound,

Element charge/magnitude example of binary ionic compound

K +1 KCl

Ca +2 CaCl₂

Ba +2 BaCl₂

Al +3 AlCl₃

Ga +3 GaN

Zn +2 ZnCl₂

Cl -1 NaCl

Br -1 KBr

O -2 CaO

S -2 H₂S

N    -3 NH₃

P -3 PH₃