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the mass of an atom is concentrated in a very small central portion of the atom which is called the atomic nucleus. The atomic nucleus is made up of nucleons, of which there are two important fundamental types: electrically positive protons and electrically neutral neutrons. So the Answer for the question is: Neutrons and Protons.
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∙ 15y ago
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∙ 11y agoWiki User
∙ 14y agoThe Atomic Mass is the weight of both the protons and the neutrons.
e.g oxygen has and atomic mass of 16 and a atomic number of 8
16-8(protons)= 8 neutrons
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∙ 11y agoAll particles of an atom have some mass. However, the vast majority of the mass is believed to be the protons and neutrons.
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∙ 7y agoThe major portion of an atom's mass is made up of protons and neutrons.
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∙ 16y agoprotons, electrons and neutrons
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∙ 14y agoNeutrons and protons.
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∙ 7y agoThe nucleus contains the mass.
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What is the mass of an atom found by?
Mass of an atom = Mass of proton + Mass of neutron
Is an oxygen atom have twice the mass of a sulphur atom?
No. On average a sulfur atom is twice the mass of an oxygen atom.
What do neutrons add to an atom?
Neutrons add MASS to an atom.
The mass of an atom is contained primarily in its?
The mass of an atom is contained primarily in its nucleus.
What does adding A neutron to an atom's do to the atom's mass?
Adding a neutron increases the atom's mass by about 1 AMU assuming it remains stable.
What is the mass of an atom found by?
Mass of an atom = Mass of proton + Mass of neutron
What represents most of an atom's mass?
The nucleus of an atom represents most of an atom's mass.
Is an oxygen atom have twice the mass of a sulphur atom?
No. On average a sulfur atom is twice the mass of an oxygen atom.
What is an atom and what are its part?
It is the basic unit of matter.An atom consist of electrons,protons and neutrons.
An atom has no mass?
It does have a mass.
Does everything on the periodic table consist of atom?
yes
Where is he mass of an atom concentrated?
99.9% of the mass of an atom is located in the nucleus
What is the mass of a calcium atom compared with the mass of a helium atom?
5
What do neutrons add to an atom?
Neutrons add MASS to an atom.
Is the mass of an iron atom any different from the mass of a copper atom?
Yes, the mass of an iron atom is different from the mass of a copper atom. The mass of an iron atom is approximately 56 atomic mass units, while the mass of a copper atom is approximately 63.5 atomic mass units. Therefore, there is a difference of about 7.5 atomic mass units between the two.
Is an atom with no mass mean it neutral?
There exists no mass less atoms. Every atom has a mass.
What is the atomic mass of an atom?
The atomic mass of an atom is the combined mass of the protons and neutrons in the nucleus.
