Question

Covalent radius of nitrogen is 70 pm . Hence covalent radius of boron is about
A. 60 pm B. 110 pm
C. 50 pm D. 40 pm ​

Answer 1

Answer:

As we move along a period radius decreases and as we move down the group, radius increases.

Hence, B(5)>C(6)>N(7).

Also,  

(r  

n

​  

∝  

Z

1

​  

 along a period).

solution

Explanation:

i hope this helps you

Answer 2

Answer:

60pm

Explanation:

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