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3 years ago

Which shows the atoms in order of decreasing atomic radii? A) F, Cl, Br B.) Cl, F, O C) S, Cl, F D) N, C, B

Chemistry

1 answer:

netineya [11]3 years ago

3 0

Answer:C) S, Cl, F shows the decreasing order of atomic radii across a period and down a group

Explanation:

The Trend of atomic radius in a period occurs like this :

decreases from left to right as you go across a period. This is because of the shrinking of the nucleus as electrons are being added to the same orbital or shell conferring on the nucleus a positive charge as protons are also being added to the nucleus causing an attraction of the positively charged nucleus to electrons.

Increase down the group-This is because of the increasing energy levels caused by an increase in the number of shell causing a gap between outermost shell and the nucleus.

--Therefore On the same group, as you move across the period 3, Sulphur has a larger atomic radius than chlorine and on group 17 chlorine has a larger atomic radius than Fluorine.

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4 years ago

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Anni [7]

Answer:

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3 years ago

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4 years ago

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