Answer asap: what term would you use to describe neon, helium, lithium, sodium, and potassium?

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Neon, Helium = Noble gas

Lithium, Sodium, and Potassium = Alkali metals

Explanation:-

Neon has the electronic configuration 2,8

It has eight electrons in it's valence shell. As such it is stable as per the octet rule. Hence Neon is a noble gas.

Helium has the electronic configuration 2.

As per the duplet rule. it is stable. Hence Helium is a noble gas.

Lithium has the electronic configuration 2,1

Sodium has the electronic configuration 2,8,1

Potassium has the electronic configuration 2,8,8,1

Lithium, Sodium and Potassium each have 1 valence electron in it's outermost shell. The group of metals with 1 valence electron is called Alkali metals.

Hence Lithium, Sodium and Potassium are called alkali metals.

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

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