6
Potassium atom has 1 valence electron
The neutral atom of molybdenum has 42 electrons.
A neutral Si atom has 3 valence electrons, which reside in the 3rd energy level valence shell. Therefore, there are 3 valence orbitals in a neutral Si atom.
they all have one valence electron.
The number of valence electrons in a neutral atom is determined by its position in the periodic table. Specifically, for main group elements (groups 1, 2, and 13-18), the number of valence electrons corresponds to the group number. For example, elements in group 1 have one valence electron, while those in group 17 have seven. Transition metals and inner transition metals have more complex electron configurations, but their valence electrons can generally be inferred from their electron configurations as well.
4
There is one valence electron in a neutral sodium atom. Sodium has an electron configuration of 2-8-1, indicating it has one electron in its outermost energy level.
A neutral oxygen atom has six valence electrons.
Potassium atom has 1 valence electron
A valence electron is one that occupies the highest energy level for any electron in a particular neutral atom. (There may be more than one such electron in a single atom.) It is an electron in the outermost shell of the atom.
after gaining or loosing valence electron or electrons
when it is on the very outside level away from the nucleusA valence electron is one that occupies the highest energy level for any electron in a particular neutral atom. (There may be more than one such electron in a single atom.)It is an electron in the outermost shell of the atom.
A neutral atom of fluorine contains 7 valence electrons.
The single valence electron of a neutral sodium atom is transferred to the valence shell of a neutral chlorine atom to form the stated bond; therefore, the answer is 1.
The neutral atom of molybdenum has 42 electrons.
Group numbers are used in the periodic table to indicate the number of valence electrons in an element. The generic outer electron configuration for a neutral atom can be determined by looking at the group number: Group 1 elements have 1 valence electron and end in s1, group 2 elements have 2 valence electrons and end in s2, group 13 elements end in s2p1, etc.
The outermost electrons are called VALENCE electrons.