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The majority of an atom's mass comes from its nucleus, where the protons and neutrons are joined. The electrons of an atom are so distant and so minuscule in size, that their weight is negligible. When calculating the mass of an atom is therefore protons+neutrons.
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Which region of an atom has no mass?
Almost all of the volume of an atom has no mass.
Where is almost all of the mass in an atom is located?
Approximately all of the atom's mass is in the nucleus. The electrons contribute almost zero.No atom has more than 100 electrons, but eachproton or neutron in the nucleushas the mass of more than 1,800 electrons.
Did john Dalton have a predictable mass on his atom?
Yes. He proposed that all elements have a specific mass, and each atom for a particular element would have that mass.
What region of an atom has all the weight?
No region has all the weight, but the vast majority of the mass of an atom is in the nucleus.
Where is the great majority of the mass of the atom found?
Most of the mass of an atom is found in its nucleus.
Is the sum of the numbers of protons and the number neutrons in an atom is the mass number?
It is the mass number for that particular form of the atom - that particular isotope. An element can exist as more than one isotope and the atom's mass number is the (weighted) average of the mass numbers of all its isotopes.
Is the mass of an ion different from the mass of the atom it came from?
A small difference of mass exist because the gain or loss of electrons.
Which region of an atom has no mass?
Almost all of the volume of an atom has no mass.
How many protons does an atom with an atomic number of 23 and a mass number of 21 have?
The specified atom can not exist, because the mass number of any atom must be at least as large as its atomic number!
The center of an atom where the neutrons and protons exist?
That is called the nucleus. It is positively charged and it makes up most of the atom's mass.
Is mass number the combining capacity of an element?
No, mass number is the number of neutrons and protons that exist within the nucleus of the atom for a particular element. It is based on the idea that most of the mass of an atom derives from the nucleus.
All of the mass of an atom is due to the?
The mass of an atom is the sum of the masses of protons, neutrons and electrons.
Which atom has atomic number zero and mass number zero?
No sense; atomic number zero and atomic weight zero doesn't exist ! Edit: !Answer = 0
What is the mass of an atom concentrated on?
virtually all the mass in concentrated in the nucleus of the atom, as the electron's mass is so small, it is negligible.
Where is almost all of the mass in an atom is located?
Approximately all of the atom's mass is in the nucleus. The electrons contribute almost zero.No atom has more than 100 electrons, but eachproton or neutron in the nucleushas the mass of more than 1,800 electrons.
Where is all the mass of an atom concentrated in?
The nucleus.
What is contained in the nucleus of a atom?
Protons and neutrons. Virtually all of the atom's mass.
