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Protons and neutrons. The amu of an atom is the total number of protons and neutrons added together.

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How many subatomic particle would be present in an atom of helium with a mass of 4 amu?

6 subatomic particles. 2 protons and 2 neutrons (that accounts for the mass of 4 amu) as well as 2 electrons.


What two subatomic particles do you add together to get the mass number?

The two subatomic particles you add together to get the mass number of an atom are protons and neutrons. Protons have a positive charge, while neutrons have no charge, but together they contribute to the mass of an atom.


What two subatomic particles are added together to determine the mass number?

The two subatomic particles added together to determine the mass number of an atom are protons and neutrons. Protons have a positive charge, while neutrons have no charge, but both contribute to the mass of an atom.


What are the two subatomic particles that make up the nucleus?

Protons and neutrons are the two subatomic particles that make up the nucleus of an atom.


What The first subatomic particle discovered?

Subatomic particles are particles that are smaller than atoms. There are two different types of subatomic particles: elementary particles and composite particles. The first subatomic particle that was discovered was the electron. It was first theorized to exist by G. Johnstone Stoney in 1874 and was confirmed to exist in 1897 by J.J. Thomson.


Which subatomic particles are involed in chemical bonding?

Electrons are subatomic particles that are involved in chemical bonding where they form a bond between two atoms.


What two subatomic have about the same mass?

These particles are: proton and neutron.


What two subatomic particles are in the nucleus of the atom?

Proton and neutron.


Which 2 subatomic particles are found in the nucleus?

The two subatomic particles found in the nucleus are protons and neutrons. Protons have a positive charge, while neutrons have no charge.


What two subatomic particles are located at the nucleus of an atom?

Protons which possess a positive charge and neutrons which possess no electric charge are subatomic particles within the nuclei of atoms.


What was the first subatomic particle discovered?

Subatomic particles are particles that are smaller than atoms. There are two different types of subatomic particles: elementary particles and composite particles. The first subatomic particle that was discovered was the electron. It was first theorized to exist by G. Johnstone Stoney in 1874 and was confirmed to exist in 1897 by J.J. Thomson.


What is A particle not made up of other particles?

subatomic particleIn physics or chemistry, subatomic particles are the small particles composing nucleons and atoms. There are two types of subatomic particles: elementary particles, which are not made of other particles, and composite particles.