Only 1 electron needed to make H stable.
Most atoms are stable when they have a full outer energy level, which typically consists of 8 electrons. This is known as the octet rule. However, some smaller atoms, such as hydrogen and helium, are stable with only 2 electrons in their outer energy level.
Hydrogen is an atom that does not need 8 electrons in its outer energy level to be stable. Hydrogen only needs 2 electrons to fill its outer energy level.
Stable.
They share their valence electrons
The most stable atoms/ions have 8 electrons in their outermost shell.
All the noble gases Helium, Neon, Argon, Krypton, Xenon and Radon have a stable octet of electrons in their outer energy level.
The first energy level can take a maximum of two electrons.
If the atom is chemically stable it doesnt need to bond, it is chemically stable when the outermost level is completely full of electrons
Noble gas
Fluorine needs 8 valence electrons to have a filled outer energy level, following the octet rule. Fluorine naturally has 7 valence electrons, so it only requires one more electron to achieve a stable octet configuration.
8 electrons
It is the most stable element in the universe and does not need anymore electrons. Its outermost energy level is full.