Chemistry, asked by shubhrasoni22, 7 months ago

1. Table below represents the elements P,Q and R along with their atomic numbers. Which elements belong to I) same group II) same period? [3]

Elements P Q R

Atomic number 2 11 18

Answers

Answered by s15139bsumandeep0846

Answer:

The elements of atomic number 5,9,13 belong to IIIA,VIIA,IIIA group respectively. Thus element of atomic number 5 & 13 have similar properties as they belong to the same group and elements of same group have similar properties. Hence answer is option B

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