Astable atom that has a large nucleus most likely contains 1. more neutrons than protons. 2.more protons than neutrons. 3.equal numbers of protons and neutrons. 4.changing numbers of protons and neutrons.

3.equal numbers of protons and neutrons.

Explanation:

A stable atom with a large nucleus would contain equal number of protons and neutrons. When the number of protons and neutrons in the nucleus are equal, an atom would attain stability.

Unstable atoms have either the number of protons or neutrons greater. In order for such atoms to attain stability, they give off the excess protons or neutrons. When atoms gives off excess protons or neutrons, they are said to be radioactive.

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."