Question

निम्नलिखित में कौन - सा तत्त्व आसानी से इलेक्ट्रॉन का त्याग नहीं कर सकता हैं ?
(क) Na
(ख) F
(ग) Mg
(घ) Fe

Answer 1

Answer:

ii) F

Explanation:

the electronic configuration of Na = (2,8,1)

 ,,          ,,                   ,,            ,,  F   = ( 2,7)

 ,,          ,,                   ,,            ,,  Mg = (2,8,2)

 ,,          ,,                   ,,            ,,   Fe = (2,8,8,8)

hence F can not loose an electron because it can make a noble gas configuration by gaining an electron. so , the least tendency of loose the electrons is shown in F

Answer 2

Answer:

• b ). Flourine .

Explanation:

florine is most electronegative and required 1 electron only to comp .

2 , 7 is its conf.

F is also a smallest atom in his grp