Introduction/General properties

Question 1

1st group

Answer 1

Boron Family :B Al Ga In Tl

Question 2

2nd group

Answer 2

Carbon Family :C Si Ge Sn Pb

Question 3

3rd Group

Answer 3

Pnictogens :N P As Sb

Question 4

4th group

Answer 4

Chalcogens : O S Se Te

Question 5

5th Group

Answer 5

Halogens :F Cl Br I

Question 6

6th Group

Answer 6

Inert gases : He Ne Ar Kr Xe Rn

Question 7

General electronic configuration

Answer 7

ns^2 np^1-6

Question 8

Group oxidation state

Answer 8

Maximum number of valence electrons=ns+np

Question 9

Other oxidation state

Answer 9

Grp O.s-2, Heavier element stable O.s

Question 10

Inert pair effect

Answer 10

Inertness of s-subshell electrons in heavier elements

Reason: energy to unpair s electrons>energy to form two bonds

Question 11

Metalloids

Answer 11

B-etter Si-ng Ge-m As Sb-ing Te-lls ArT

B, Si, Ge, As, Sb, Te ,At (astatine)

Question 12

Non metals Bond formation energies

Answer 12

High IE and High Electronegativity

Question 13

Oxides trend

Answer 13

Acidity decreases- group

Basicity Increases- group

Question 14

Anamalous behaviour of first elements

Answer 14

Maximum Covalency

Ppi Ppi bonds

Question 15

So3 bonds (sp2)

Answer 15

3 sigma(hybrid) and 1ppi-ppi and 2dpi-ppi bonds

Question 16

co3 2- Bonds (sp2)

Answer 16

3 sigma(hybrid) 1 ppi-ppi bond

Question 17

Po4 3- (sp3)

Answer 17

3 sigma(hybrid) 1 ppi-dppi bond