An atom can have a maximum of 8 valence electrons in its outermost energy level, except for hydrogen and helium, which can only have a maximum of 2 valence electrons. The number of valence electrons determines an atom's chemical properties and reactivity. Elements in the same group on the Periodic Table have the same number of valence electrons.
nitrogen has 5 valence electrons. carbon has 4 valence electrons.
A barium atom has two valence electrons.
There are 3 valence electrons in an atom of aluminium.
A neutral atom of aluminum has 3 valence electrons.
Nitrogen has five valence electrons.
nitrogen has 5 valence electrons. carbon has 4 valence electrons.
A barium atom has two valence electrons.
There are 2 valence electrons in an atom of magnesium. There are 5 valence electrons that are in an atom of phosphorus. There are 4 valence electrons that are in a silicon atom.
There are 3 valence electrons in an atom of aluminium.
Nitrogen has five valence electrons.
A neutral atom of aluminum has 3 valence electrons.
A neutral atom of fluorine contains 7 valence electrons.
A chromium (Cr) atom has 6 valence electrons.
An atom of rhodium (Rh) has 9 valence electrons.
A fluorine atom has seven valence electrons, as do all halogens.
Two valence electrons
Fluorine atom has seven valence electrons.