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The mass number is the sum of protons and neutrons in the atomic nucleus.

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10y ago

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The mass number is the sum of which two subatomic particles?

Neutrons and Protons.


What are the subatomic particles that determine an atom's chemical behavior?

electrons


What subatomic particles are added to determine the atomic mass?

Protons and neutrons.


Which subatomic particles are used to determine an atoms mass number?

Two particles are considered. they are protons and nrutrons


What is the sum of the masses of the positively charged subatomic particles are called what?

You think probably to mass number; the mass number is the sum of protons and neutrons.


What is the total number of subatomic particles in the nucleus of an atom bi?

In this case, the number 209 represents the sum of protons + neutrons.


What is in between subatomic particles?

Subatomic particles are: neutron, proton, electron.


What 2 subatomic particles can you determine form the atomic number?

The number of protons as well as the number of electrons.


What is the relationship between subatomic particles and the formation of matter?

Subatomic particles, like protons, neutrons, and electrons, are the building blocks of matter. They combine to form atoms, which then come together to create molecules and larger structures. In essence, the interactions between subatomic particles determine the composition and properties of all matter in the universe.


Subatomic particles bigger than molecles?

Subatomic particles are smaller than molecules and are the building blocks of atoms. Protons, neutrons, and electrons are examples of subatomic particles found in atoms. There are no known subatomic particles that are bigger than molecules.


What is the smallest part of a comet?

The smallest part of a comet is likely the dust particles that make up its coma, which is the cloud of gas and dust that surrounds the comet's nucleus. These dust particles can be as small as a few micrometers in size.


Are photos made of subatomic particles?

No, photos are not made of subatomic particles. Photos are composed of photons, which are massless particles that carry electromagnetic force. Subatomic particles refer to particles like electrons, protons, and neutrons, which make up atoms.