Question

28] A part of the modern periodic table is given below. Using this answer the following ques-
fions.
Period Na mg and k ca
Group Na k

i] Which element has the smallest atomic radius?
ii] Which element has highest metallic nature?
1 Which element has the highest atomic radius? Give reasons for your answers
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Answer 1

Answer:

i)mg have smallest radius in among 4 elements

hydrogen have smallest atomic radius in the periodic table

ii) among four k have highest metallic properties

in modern periodic table francium has highest metallic properties

Explanation:

metallic properties decreases as we move from left to right in a period (attraction increases) and increases as we move from top to bottom in a group (attraction between nucleas and outermost shell decreases so it can donate electrons easily and become electropositive which is metal)

atomic radius decreases as we move from left to right in a period (as positive charge increases shell moves towards the nucleus) and increases as we move top to bottom in a group (as one shell gets added)

please mark BRAINIEST