Science, asked by sunitagupta54637, 11 months ago

What are the changes occurred in valency of elements in periods and groups

Answers

Answered by kkprasad2005
1

Explanation:

Valency in the periodic table across a period first increases and then decreases. There is no change going down a group. However, this periodic trend is sparsely followed for heavier elements (elements with atomic number greater than 20), this especially for lanthanide and actinide series.

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Answered by sunakat483
0

Answer:

Valency in the periodic table across a period first increases and then decreases. There is no change going down a group. However, this periodic trend is sparsely followed for heavier elements (elements with atomic number greater than 20), especially for lanthanide and actinide series.

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