How can i find out how many electrons an element has in its outer energy level?
Im trying to find out what element has five electrons in its outer energy level. And what element has an energy level configuration of s2 p1?
Gotta disagree with flameboy – Lithium does not have any p electrons
I assume that they mean 2s2 2p1 which is boron.
October 22nd, 2009 at 9:13 pm
Group 5 elements have 5 electrons in outer energy level
S2, P1 = Lithium
References :
October 22nd, 2009 at 10:01 pm
Gotta disagree with flameboy – Lithium does not have any p electrons
I assume that they mean 2s2 2p1 which is boron.
References :
October 22nd, 2009 at 10:43 pm
basically all the lower elements follow 2,8,18 electrons in their K,L,M shells respectively. now whatever is the atomic number of the concerned element try to fit them in the respective shells.
for example nitrogen’s atomic no. is 7 so put 2 electrons in the K shell, you are left with 5 electrons which fit into the L shell. since in this case L is the last shell or level you got the first answer.
References :