Question

plz answer it briefly ​

Answer 1

Answer:

a. 1

b. 11

c. H (electronic configuration : just draw a circle with one electron)

d. Sorry this one I don't know

Explanation:

a. Atomic Number means the number of proton (1)

b. Mass Number means the number of electrons and neutrons (1+10=11)

c. This element has only 1 electron. According to the Periodic Table , H(hydrogen) has only 1 electron. It is match with the question.