What happens to an atom if its valence shell is full?

What happens to an atom if its valence shell is full?

This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons. In general, atoms are most stable, least reactive, when their outermost electron shell is full. These electron configurations make helium and neon very stable.

What does does not react with any other element has a full valence shell filled?

Noble gases are the least reactive of all known elements. Their outer energy levels are full because they each have eight valence electrons. The only exception is helium, which has just two electrons. Therefore, noble gases are rarely involved in chemical reactions and almost never form compounds with other elements.

What happens to valence outer electrons in metal?

In most cases, the outermost electron shell of each of the metal atoms overlaps with a large number of neighbouring atoms. As a consequence, the valence electrons continually move from one atom to another and are not associated with any specific pair of atoms.

Why do atoms want a full outer shell?

Atoms want a full outer shell because it completes all the gaps in the outside. With no gaps, other electrons don’t want to fit into those spaces. For example, a noble gas like Neon has a full outer shell. It doesn’t react with other chemicals because the electrons from other chemicals can’t fall in anywhere.

Why is a full outer shell stable?

Because when atoms bond they share electrons. If they have a full outer shell they don’t need to share electrons, so they don’t like to bond with other atoms.

Why do elements with 1 valence electron react with water?

Elements in the same group of the periodic table have the same number of valence electrons. These are the electrons in the outer energy level of the atoms that can be involved in chemical reactions. All the elements in group 1 have just one valence electron. This makes them very reactive.

Why are atoms more stable with a full outer shell?

The properties of an element are determined by its outermost electrons, or those in the highest energy orbital. Atoms that do not have full outer shells will tend to gain or lose electrons, resulting in a full outer shell and, therefore, stability.

Do metals have full valence shells?

An atom with one or two valence electrons more than a closed shell is highly reactive, because the extra valence electrons are easily removed to form a positive ion….The number of valence electrons.

Periodic table group	Valence Electrons
Group 2 (II) (alkaline earth metals)	2

Why do metals have different valence electrons?

Transition metals have variable valencies because the energies of the 3d orbital and 4s orbitals (or similar orbital comparisons in lanthanides and actinides, etc.) are similar, so electrons are able to bond from the d-shell as well.