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Protons and neutrons. Electrons have a too little mass.

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13y ago
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12y ago

The proton and the neutron. Both are located in the nucleus.

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11y ago

protons plus the neutrons equal the Atomic Mass

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Q: What 2 atomic particles make up the mass of an atom?
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What are the particles that make a atom including the atomic number and mass number?

The atomic number is the number of protons in an atom (which equal the number of electrons present) The atomic mass is the number of protons+neutrons in an atom


The mass of all particles of an atom added together is its what?

The mass of all particles of an atom added together is its atomic mass. This value is typically expressed in atomic mass units (amu).


How do you determine the numbers of the three types of particles in each atom?

In an atom, no. of protons = no. of electrons=atomic no. no. of neutrons=atomic mass-atomic no.


Do carbon and oxygen have the same atomic mass?

No, carbon and oxygen do not have the same atomic mass. Carbon has an atomic mass of approximately 12 atomic mass units, while oxygen has an atomic mass of approximately 16 atomic mass units.


What two particles of the atom are added together to get the atomic mass?

4


What sub atomic particles makes up mass of an atom?

Protons and neutrons


What particles make up the atomic mass number of an element?

The atomic mass number of an element is the sum of the number of protons and neutrons in the nucleus of an atom. Protons have a positive charge and neutrons are neutral, together they account for the majority of an atom's mass. Electrons, which have a negative charge, are much smaller in mass and orbit around the nucleus.


What particles make up the mass of an atom?

The number of protons


Which of the following particles is used to determine the mass of an atom?

Neutrons are used to determine the mass of an atom. By adding the number of protons and neutrons together, the atomic mass of an atom can be calculated.


Nitrogen has an atomic mass of 14 and an atomic number of 7 so the number of neutrons must be?

The number of neutrons in an atom can be calculated by subtracting the atomic number from the atomic mass. In the case of nitrogen, which has an atomic number of 7 and an atomic mass of 14, the number of neutrons would be 7 (14 - 7 = 7).


Which term is used to describe the way the mass of subatomic particles is described?

Atomic Mass units =]


What the distinction between atomic mass and atomic number?

Atomic mass refers to the total mass of the protons, neutrons, and electrons in an atom, while atomic number represents the number of protons in an atom's nucleus. Atomic mass is typically a decimal number and takes into account the mass of all the particles in an atom, whereas atomic number is always a whole number and is unique for each element.