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when you could check in most of atoms that we have you will see that the sum of protons and electrons equals to or is called the atomic weight or Atomic Mass...that is if you add protons to electrons you have your atomic mass.

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11y ago
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11y ago

The number of protons and electrons (in a neutral atom) is equal to the atomic number.

The sum hasn't a special meaning.

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11y ago

atomic number

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9y ago

it is called the atomic mass

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11y ago

Mass Number

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Q: Which term describes the sum of the number of protons and neutrons in an atom?
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How atomic mass describes the number of protons in the nucleus of an atom?

Atomic mass is the total of the number of protons PLUS the number of neutrons.


What is the total amount of protons and neutrons in an atom?

The total amount of protons and neutrons in an atom is its mass number.


What does the atomic number of an atom made of?

An atomic nucleus contain protons and neutrons; protons and neutrons contain quarks and gluons.


What particles make up the mass of an atom?

The number of protons


The number of protons and neutrons in an atom?

Depends on the atom. The atomic number will give you the number of protons. The atomic weight will give you approximately the number of protons and neutrons combined.

Related questions

Which pair below describes isotopes of the same element Aan atom with 6 protons and 8 neutrons - an atom with 8 protons an 6 neutrons Ban atom with 6 protons and 6 neutrons - an atom with 6 p?

The pair below that describes isotopes of the same element is B, an atom with 6 protons and 6 neutrons-an atom with 6 protons. It is not A, an atom with 6 protons and 8 neutrons- an atom with 8 protons and 6 neutrons. Isotopes of the same element have the same number of protons and electrons, which is the atomic number of the element.


How atomic mass describes the number of protons in the nucleus of an atom?

Atomic mass is the total of the number of protons PLUS the number of neutrons.


What term best describes the sum of the number of protons and neutrons in an atom?

Atomic mass


The number of neutrons plus protons in the nucleus of an atom-?

nass number is the number of neutrons plus protons in the nucleus of an atom


What is the total amount of protons and neutrons in an atom?

The total amount of protons and neutrons in an atom is its mass number.


What is the sum of protons neutrons in an atom?

Mass number = Protons+Neutrons


What does the atomic number of an atom made of?

An atomic nucleus contain protons and neutrons; protons and neutrons contain quarks and gluons.


The mass number of an atom indicates the number of what?

The mass number is the sum of protons + neutrons.


What particles make up the mass of an atom?

The number of protons


The number of protons and neutrons in an atom?

Depends on the atom. The atomic number will give you the number of protons. The atomic weight will give you approximately the number of protons and neutrons combined.


What is the number of an atom with 5 protons and 7 neutrons?

To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.


What areParticles that makes protons and neutrons?

The sum of the number of protons and neutrons in an atom