Question

Long AnswerType Questions (5marks)
Q1.(0) How does atomic size vary along the group? Give reason,
(ii) Why are metals electropositive in nature?
(iii) What are metalloids? Give an example.
Q2. Name-
(i) Two elements that have a single electron in their outermost shells.
(in) Two elements that have two electrons in their outermost shells.
(iii) Two elements with filled outermost shell.
(iv)Two elements thatbelong to halogen family.
(v) An element which is tetravalent and forms the basis of organic chemistry.​

Answer 1

Explanation:

helium third Balancer