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The atomic number of an element is the number of protons in the nucleus of the atom; each element has its own distinct number. The Atomic Mass is the mass of the nucleus of the atom: protons and neutrons. One proton is equivalent to one unit of mass, as is a neutron. You can figure out the number of neutrons in an atom by subtracting the atomic number (number of protons) from the atomic mass; the difference is the number of neutrons.
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∙ 12y ago
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∙ 8y agothe mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
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∙ 12y agoThe atomic number of elements depends on the number of protons. The atomic number also represents the number of electrons in which equals the number of protons.
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∙ 11y agoThe mass number of an isotope of an element is defined as the sum of the numbers of protons and neutrons in the nucleus of each atom of the isotope.
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∙ 10y ago"number of protons in an atomic nucleus"
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∙ 10y agoatomic number = number of protons
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The nucleus makes up 99 percent of the atoms what?
mass
What particle makes up an atoms atomic mass?
the particle that is represent in the mass number is/ sum equals, protons and neutrons.
What makes up the atoms mass number?
The mass number is the average total of the number of protons and neutrons in the atomic nuclei of all the isotopes of that element on earth. Thus, the average number of neutrons in that element can be found by subtracting the atomic number from the mass number.
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
What makes up nearly all of the atoms's mass?
The sum of all Protons and Neutrons.
What is mass proportional to the number that makes up an object?
atoms
What makes up the mass in a chemical reaction?
The atoms.
What thing makes up matter?
Mass and atoms
The nucleus makes up 99 percent of the atoms what?
mass
What particle makes up an atoms atomic mass?
the particle that is represent in the mass number is/ sum equals, protons and neutrons.
What makes up of the atoms?
The nucleus makes up most of the mass and the other things in the atom make up the rest.
How can Atoms vary?
Atoms and elements can vary in many ways. Atoms mainly vary by having different numbers of protons, electrons, and neutrons. The count of protons makes up an elements mass number.
What makes up the atoms mass number?
The mass number is the average total of the number of protons and neutrons in the atomic nuclei of all the isotopes of that element on earth. Thus, the average number of neutrons in that element can be found by subtracting the atomic number from the mass number.
What Make up 50 percent of the atomic mass of the nucleus?
Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.Well, this is not exact, but smaller atoms have about the same number (and mass) of neutrons and of protons. Heavier atoms have a larger percentage of their mass in neutrons.
What makes up the mass of atoms?
Protons and neutrons are the primary contributors to an atom's mass. Electrons make up an insignificant amount of mass. Atomic mass is determined by adding the number of protons and neutrons in a nucleus.
How many atoms of the element makes up molar mass?
The molar mass is the sum of the atomic weights of atoms contained in the molecule.
What makes up nearly all of the atoms's mass?
The sum of all Protons and Neutrons.
