Anion (if it has an almost-filled outer shell) or a cation (if only the outer S orbital is filled or partially filled)
No atom can hold 18 electrons in its outer energy shell - there is the valence rule, stating that the maximum for the outer shell is 8 electrons.
Electrons per shell in astatine: 2, 8, 18, 32, 18, 7.
Electrons are not located in the nucleus of an atom.
the number of valence electrons in the atom's outer shell how much the valence electrons are shielded from the nucleus
Electron outer shell tee hee =^-^=
8 electrons on the outer shell
The outer shell of an atom is the valence shell, which contains the valence electrons.
"valance shell"
Electrons in the outer most shell are called Valence Electrons.
No atom can hold 18 electrons in its outer energy shell - there is the valence rule, stating that the maximum for the outer shell is 8 electrons.
Valence Electrons
An oxygen atom has six (6) electrons in its outer shell.
A chloride anion contains eight outer shell electrons, one more than the seven outer shell electrons found in a chlorine atom.
valence electrons are the electrons located in the outer shell of an atom which are available for reaction
Electrons per shell in astatine: 2, 8, 18, 32, 18, 7.
The outer valence shell of a sulfur atom contains a total of 6 electrons: two 3s electrons and four 3p electrons.
The outer most electron shell of iodine atom contains 7 electrons.