1 point
3. Which of the following
indicates the correct order of
variation in atomic size?
O (a) Be <C< F< Ne
O )
(b) Be > > F > Ne
O (c) Be > C >Ne> F
O (d) F< Ne > Be <c
Answers
Answered by
0
Answer:
The decreasing order of these elements are as follows:
Be: 1.4 A°
C: 0.91 A°
F: 0.57 A°
Ne: 0.51 A°
These elements belong to same period in the periodic table
The simple logic that follows is, as we go from left to right of a period, elements are arranged in manner of increasing order of their atomic number. The number of shells remaining constant in a period, the nuclear force increases and the valence electrons are attracted more inwardly. Hence there is a decrease in atomic size of the elements in same period.
Hope it helps
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