Question

Please help me!
Will give the brainliest!
Please answer correctly.
Really urgent!!​

Answer 1

Explanation:

1,a: I) group 2 = strontium

ii) chlorine

iii) nitrogen

B) i) strontium outer shell=2

ii)nitrogen:outer shell=5

iii) chlorine=7

C)metal

strontium

nickel

molybdenum

cesium

tin

non metal:..

chlorine

nitrogen

neon