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The number of protons
Chanelle Morar
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∙ 9y agoWe can find Atomic Mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
Wiki User
∙ 8y agoThe mass of an atom contain the masses of neutrons, protons and electrons.
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∙ 12y agoprotons and nuetrons
Wiki User
∙ 12y agoprotons + neutrons+electrons
Wiki User
∙ 11y agonumber of protons and number of neutrons
Wiki User
∙ 15y agothe number of protons it has
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What particles make up most of the mass atom?
air,mater
Which two subatomic particles make up the atomic weight of an atom of an element?
The protons and the neutrons make up the atomic weight of an atom of an element, they have roughly the same mass and electrons have so little mass that they're negligible.
What particles make up the atomic mass number of an element?
The atomic mass number of an element is determined by mass of the nucleus of an atom. Therefore the particles that make up the nucleus determine the mass number. These particles are protons and neutrons.The mass of the protons and neutrons do not vary between elements, but the number of each in the nucleus varies between elements and between isotopes of the same element.
What are the 2 particles that make up the nucleus of an atom?
Protons and neutrons compose the nucleus of an atom. Most of the mass of an atom exists in the nucleus. Other smaller sub atomic particles such as quarks exist, but are usually not addressed until advanced physics or chemistry classes.
What 2 atomic particles make up the mass of an atom?
Protons and neutrons. Electrons have a too little mass.
In Bohr's model which particles make up the most mass of the atom?
the electron particles make up the mostr mass
What particles make up most of the mass atom?
air,mater
What particles take up most of the mass of an atom?
Protons and neutrons make up most of the mass of an atom. Electrons weigh almost nothing by comparison.
Which two particles make up most of the mass of a C-12 atom?
proton and neutron
Which two subatomic particles make up the atomic weight of an atom of an element?
The protons and the neutrons make up the atomic weight of an atom of an element, they have roughly the same mass and electrons have so little mass that they're negligible.
Which subatomic particles makes up most of the mass off the atom?
The major contribution to the mass of an atom is from protons and neutrons; electrons have a known but negligible mass.
What particles in the nucleus of the atom?
The particles in the nucleus of an atom are the protonsand the neutrons. We call particles that make up the atomic nucleus nucleons, and this word is just a way to say "the particles that make up an atom's nucleus" in an abbreviated manner.
Which two particles make up most of the mass of a hydrogen-2 atom?
The proton and the neutron make up most of the mass of a hydrogen-2 atom.
What particles make up the atomic mass number of an element?
The atomic mass number of an element is determined by mass of the nucleus of an atom. Therefore the particles that make up the nucleus determine the mass number. These particles are protons and neutrons.The mass of the protons and neutrons do not vary between elements, but the number of each in the nucleus varies between elements and between isotopes of the same element.
What sub atomic particles makes up mass of an atom?
Protons and neutrons
What are the 2 particles that make up the nucleus of an atom?
Protons and neutrons compose the nucleus of an atom. Most of the mass of an atom exists in the nucleus. Other smaller sub atomic particles such as quarks exist, but are usually not addressed until advanced physics or chemistry classes.
What are the particles that make up an atom?
Here are some particles that make up an atom: Protons-Positive charge particles Electrons-negative charged particles Neutrons- no charge at all :))
