valency across a period __________ gradually
Answers
Answered by
0
Answer:
Increases
Explanation:
Ans. As the atomic number increases, the number of valence electrons increases.The first element has one electron in its outermost shell while the last element in a period has either completed duplet or octet.
Answered by
3
Answer:
first increases then decreases
Explanation:
It is due to metallic and non metallic properties of the elements
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