Question

.The unit of electro negativity *


i)Angstrom

ii)kcal/mole

iii)ev

iv)no units

.What is the atomic number of immediate element next to sulphur in the group *


i)16

ii)32

iii)34

iv)24

.Which pair has both members from the same group of periodic table *


i)Mg, Ba

ii)Mg, Na

iii)Mg, Cu

iv)K, Cl

​

Answer 1

Answer:

1) 4. 2)3. 3)1.

Explanation:

Electro negativity can be measured as following

Electronegativity= (ionisation energy + electron affinity)/2

hence it's valus are considered in numerals

Answer 2

Explanation:

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