Question

Name
(1) Two elements that have a single electron in their outermost shells,
(ii) Two elements that have two electrons in their outermost shells.
(ii) Two elements with lilled outermost shell,
(iv)Two elements thatbelong to halogen family,
(v) An element which is tetravalent and forms the basis of organic chemistry.​

Answer 1

Answer:

1 hydrogen, sodium , potassium

Explanation:

2 magnesium and calcium

3. and 4. neon argon xenon

5. Carbon