magnesium has 12 protons, how many electrons are in the second level?

Question

i don't understand how you would get the answer so please help

Answer 1

It is not called a s second level.It is called as orbit or shell.Magnesium has 12 protons as well as 12 electrons.There fore its atomic number is 12.Therefore its electronic configuration is (2,8,2)So it has 8 electrons in its second orbit.

Answer 2

magnesium has 12 protons, since the number of protons is equivalent to the number of electrons. According to the electron configuration, there are 2 electrons in the first layer, 8 electrons in the second layer, and 2 electrons in the outtermost, third layer.

Hope this helps.

Answer 3

No of protons = no of electrons

Electrons orbit in shells – a shell has to be filled before the next takes electrons

Shell 1 is K (max is 2) K = 2
Shell 2 is L (max is 8) L = 8
Shell 3 is M (max is 18) M = 2

Hope this helps

Answer 4

the number of protons and the electrons are the same. hence there will be 12 electrons. the maxinum number of electrons for the first shell is 2 while the max number of electrons that the second shell can hold is 8 and the max number of electrons that the third shell can hold is 8. hence the electrons in the first shell to the third shell will be -2,8,2
hope this helps(:

Answer 5

20

Answer 6

i think so in sencond level i.e. in L shell there will be 8 electrons.

Answer 7

2 -8- 2
Ans. 8