18 and a half
One
Alkali-earth metals
Alkali metals lose one electron in chemical reactions.
Such atoms belong to a group in the periodic table of elements.
Hydrogen is placed in group 1, along with alkali metals
There are 6 electrons in the valence shell of the oxygen family. This includes elements like oxygen, sulfur, selenium, and tellurium. These elements all have 6 valence electrons because they belong to group 16 (or 6A) of the periodic table.
A metal in the alkali metal family has one valence electron where as a metal in boron family has three valence electrons. It is easy to remove one valence electrons than three. So alkali metals will be more reactive.
No. oxygen has only 6 valence electrons and belongs to group 16. Noble gases have 8 valence electrons and belong to group 18
The key to this answer is the phrase "valence electrons". Alkali metals are in the first column of the periodic table and include elements such as Lithium, Sodium and Potassium. These elements typically lose ONE electron when they participate in a chemical reaction, therefore they have ONE valence electron.
how many valence electrons does family 1 have
Halogen family members, or elements in group 17, have 7 valence electrons.
No, the lithium family is not a reactive group of mostly nonmetals with 7 valence electrons. The lithium family, also known as the alkali metals group, includes lithium, sodium, potassium, rubidium, cesium, and francium. These elements are metals and have 1 valence electron.