Helium is a mono-atomic element and has completely filled s-orbitals. So it is stable and non-reactive (chemically inert). Hence helium will not form any type of bonds with other elements.
No, helium has 2 electrons in its outer shell, while magnesium has 2 electrons in its outer shell. So, they do not have the same amount of electrons in their outer shell.
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
2 valence electrons for helium (helium has only 1 shell)
Helium is the only noble gas that does not have eight electrons in its outer shell. It has only two electrons in its outer shell.
Helium (He) and Calcium (Ca) both have 2 valence electrons.
When outer electrons interact they form a bond. (ionic or chemical)
2
2 valence electrons
Yes, helium only has two electrons which makes up its valence electrons (also known as an outer shell) and magnesium also has two valence electrons.
2.You are in terrible need of a periodic table. It's really not that difficult, and it's well worth learning.
Helium has only two electrons. It is the first noble gas in the periodic table and has a full outer electron shell.
2 valence electrons for helium (helium has only 1 shell)