Question

which the given elements
Na
Rb
Cs
Li
Element
231
186
264
244
152
Atomic radius (pm)
(b) Arrange the above elements vegrtically downwards in an increasing
order of atomic radii. Li LNUZICROCS
(c) Does this arrangement match with the pattern of the group 1 of the
modern periodic table.​

Answer 1

NA - sodium

RB- rubidium

CS-caesium

LI - lithium

this arrangement matches with the nonmetals or 1st period