Question

22. The positions of the A, B, C, D elements in the modern periodic table are given in the
table below. Look at the table and answer the following questions.
Group-1 Group-2
Period-3 А
B.
Period-4 C
D
i) Which element is having maximum seize of atomic radius? Why?
ii) Which element is having lowest metallic property? why?​

Answer 1

Answer:

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Explanation:

a) E

b) D

c) B

d) The noble gases

e) D has bigger atomic radius.The atomic radius decreases in moving from left to right along a period.This is due to an increase in nuclear charge which tends to pull the electrons closer to the nucleus and reduces the size of the atom.