Iodine has a full electronic configuration of:-
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10
5s2 5p5
No of electrons: Level 1, 2; Level 2, 8; Level 3,18; Level 4, 18; Level 5, 7.
Iodine has 7 electrons in its outer energy level.
Carbon has four electrons in the outermost energy level, which is energy level two. It needs eight electrons to have this energy level filled.
Aluminum has 3 electrons in its outermost energy level.
Magnesium has two electrons in its first energy level, eight electrons in its second energy level, and two electrons in its third energy level, for a total of 12 electrons.
An argon atom has 2 electrons in its first energy level, 8 electrons in its second energy level, and 8 electrons in its third energy level.
Iodine has 7 electrons in its outer energy level.
Seven
They have seven electrons in their outer shell they are in group seven on the periodic table.
Carbon has four electrons in the outermost energy level, which is energy level two. It needs eight electrons to have this energy level filled.
Aluminum has 3 electrons in its outermost energy level.
Carbon has four electrons in the outermost energy level, which is energy level two. It needs eight electrons to have this energy level filled.
Magnesium has two electrons in its first energy level, eight electrons in its second energy level, and two electrons in its third energy level, for a total of 12 electrons.
Argon has 2 electrons in the first energy level, 8 electrons in the second energy level, and 8 electrons in the third energy level.
An argon atom has 2 electrons in its first energy level, 8 electrons in its second energy level, and 8 electrons in its third energy level.
Uranium has 2 electrons on its outer energy level.
In the second energy level of an atom, there can be a maximum of 8 electrons. Magnesium has 12 electrons in total, with 2 electrons in the first energy level and 8 electrons in the second energy level.
In the 3rd energy level, there can be a maximum of 4 electrons.