Question

1. Elements A,B and C have atomic number 17 , 19 and 10 respectively. a) State which one is : i) a non-metal ii) a metal iii) chemically inert​

Answer 1

Answer:

Atomic no. 17 = chlorine; which is a halogen. Atomic no. 19 = Potassium; which is an alkali metal.

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Answer 2

Answer:

Atomic no. 17 = chlorine; which is a halogen. Atomic no. 19 = Potassium; which is an alkali metal.