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Question
Write a scientific reason.
The non-metallic character increases while going from left to right in a period.
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Solution
- While going from left to right in a period, electrons are added to the same outermost shell. At the same time, protons get added in the nucleus, increasing the nuclear charge.
- Hence, these electrons experience greater pull from the nucleus due to increased effective nuclear charge.
- As a result, the ability of an atom to become an anion by accepting outside electrons increases.
- The non-metallic character of an atom is its tendency to gain electrons.
Hence, non-metallic character increases while going from left to right in a period.
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