Question

H. He
Li Be B C N O F Ne
Na
K
Rb
cs

a ) Arrange the given element in the oder
decreasing size in the
period-
Group-
b ) arrange the order of increasing metallic character period -
group -​

Answer 1

Answer:

in group top to bottom atomic size of elements increases and metallic character also increases as a more down in a group in first group caesium has more atomic radius and and the Order is as follows

Cs>Rb>K>Na>Li>H (atomic size)for 1 group

in periods left to right atomic size decreases