Question

Please answer it. Questions are based on modern periodic table

Answer 1

hiiiii friend
here is your answer
as the atomic radius on moving down a group increases and on moving across a period atomic radius decrease. so,

.tendency to gain electrons increases on moving from left to right in a period.
.tendency to form basic oxide increases on moving down a group.
.valency remains same.




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Answer 2

Increases
Increases
Remains constant