Question

1. Rend the given passage and answer the following questions
1x44
Periodic properties show a regular gradation on moving from left to right in a period or from top
to bottom in a group. Down a group, the atomic/onic radii, metallic character and reducing
character incrense while ionization enthalpy and electronegativity decrease. Along a period from
left to right, atomic or ionic radit and metallic character decrease while ionization enthalpy,
electronegativity, non-metallic character and oxidizing power increase. However electron gain
enthalpy becomes less negative down a group but more negative across a period. In contrast,
inert gases have positive electron gain enthalpies which do not show any regular trend.
The following questions are multiple choice questions. Choose the most appropriate
ANSWER:
Ir the ionic radii of K and F are about 1.34 A" ench, then the expected values of atomic radii
of K and F respectively are:
2.31 Aº and 0.64 A"
b) 2.31 A" and 1.34 Aº
c) 0.64 Aº and 2.31 Aº
d) 1.34 A" and 143 A"
​

Answer 1

Explanation:

ANSWER:

Ir the ionic radii of K and F are about 1.34 A" ench, then the expected values of atomic radii

of K and F respectively are:

2.31 Aº and 0.64 A"

b) 2.31 A" and 1.34 Aº

c) 0.64 Aº and 2.31 Aº

d) 1.34 A" and 143 A" this the please give brainy