Does sodium have 8 valence electrons?

Sodium has one valence electron. The element has a full innermost electron shell of two electrons and a full shell of eight electrons in the next shell. The third shell, which is the outermost and the valence shell, has only one electron. Valence electrons influence chemical reactivity.

How many outer electrons does sodium have?

eight electrons
Sodium has 11 electrons. The first two fill the innermost energy level. The second energy level is also full, holding eight electrons and one electron remaining in the outer energy level. It is the number of outer electrons that give an element its chemical properties.

Does sodium have 1 valence electrons?

A: An atom of a group 1 element such as sodium has just one valence electron. It is “eager” to give up this electron in order to have a full outer energy level, because this will give it the most stable arrangement of electrons.

How many valence electrons does NA 11 have?

So, sodium’s 11 electrons are arranged this way: 2 electrons in the first “shell”, 8 electrons in the second “shell”; and 1 electron (the valence electron) in the third “shell”.

Which of the following has 8 valence electrons?

Atoms of neon (Ne), argon (Ar), krypton (Kr), and xenon (Xe) have 8 valence electrons. These elements are nonreactive, or stable.

How many valence electrons does Na 11 have?

What element has 8 valence electrons and 3 energy shells?

These electron configurations make helium and neon very stable. Although argon does not technically have a full outer shell, since the 3n shell can hold up to eighteen electrons, it is stable like neon and helium because it has eight electrons in the 3n shell and thus satisfies the octet rule.

What family has 8 valence electrons?

Noble Gases
Noble Gases The Group 18 elements are the noble gases. Atoms of the noble gases have 8 valence electrons, except for helium, which has 2. Atoms with 8 valence electrons (or 2, in the case of helium) are stable. They are unlikely to gain or lose electrons or to share electrons with other atoms.

How do you calculate valence electrons?

The number of valence electrons for molecules can be calculated by adding the valence electrons of all the atoms that form that respective molecule.

How do you count valence electrons?

1 Answer. You can calculate the number of valence electrons of transition metals by counting the number of electrons outside the ultimate noble gas core. This means there are 6 valence electrons available for bonding.

Which elements have only one valence electron?

The elements belonging to Group 1 of the periodic table have one valence electron. They are called alkali metals (except hydrogen which also belongs to group 1 and has 1 valence electron). The alkali metals include: lithium, sodium, potassium, rubidium, cesium and francium.

What element has 7 valence electron?

Fluorine has 7 valence electrons it means that a pair of electrons will be shared between the fluorine atoms . Valence electrons are those electrons which are present in the outermost shell of an atom. Fluorine has atomic number 9.