Answers

2016-01-07T11:05:11+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Its period should be 3 as it will have 3 shells and group no. should be 2 as in the outermost shell the 2 electrons are left
1 5 1
if u like it than plz... mark it as brainliest ans....
  • Brainly User
2016-01-07T11:05:53+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Magnesium has the atomic number 12.So it will come in 2 group which is "Alkaline Earth metals"
1 5 1