Which of the following element has 3 shells and have 4 electrons in the outermost shell?
Hydrogen
Magnesium
Silicon
None of the above
Silicon has 3 shells and has 4 electrons in the outermost shell.
Name:
1. Three elements having a single electron in their outermost shell.
2. Three elements with filled outermost shell.
3. Three elements having 7 electrons in their outermost shell.
Name
(a) three elements that have a single electron in their outermost shells.
(b) two elements that have two electrons in their outermost shells.
(c) three elements with filled outermost shells.
How many electrons do the following elements have in their outermost shells?