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The mass number of an atom is defined as the total number of protons and neutron (collectively called "nucleons") in the atomic nucleus. For example, a helium atom with 2 protons and 2 neutrons would have a mass number of 4.
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∙ 13y ago
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∙ 12y agoThe total number of particles (i.e. protons and neutrons) within a nucleus
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∙ 15y agoThe number of positively charged protons in the nucleus of each atom of a substance.
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∙ 13y agoMass number equal is to the sum of proton AND neutron numbers.
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∙ 12y agothe mass number is equivalent to the number of protons plus the number of neutrons in an atom
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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.
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How is the mass number related to the number of protons and neutrons and atoms has?
The mass number of an element is equal to the number of protons plus the number of neutrons.
Is the mass number of an atom equal to the atomic number?
Only if the atom is hydrogen-1! The mass number of the atom is equal to the sum of the numbers of protons, which is the same as the atomic number, plus the number of neutrons. The only non-radioactive atom without neutrons is hydrogen-1.
What does the mass number represent?
The mass number represents the weight of the protons and neutrons in Atomic Mass units (AMUs). One AMU is equal to one proton or neutron.The average mass of all isotopes of the element - apex.
What represents the number of protons and neutrons in an atom of uranium?
The number of protons is equal to the number of electrons and the atomic number. The number of neutrons is different for each isotope (number of neutrons = atomic mass of the isotope [or mass number] - number of protons).
What are the atomic number and mass number if the number of electron in an element oxygen is 8 and the number of neutrons is 9?
The atomic number is 8 (the number of protons, which for oxygen is equal to the number of electrons) and the mass number is 17 (the combined number of protons and neutrons).
Atomic mass is equal to what?
atomic mass unit is equal to one-twelfth of the mass of a carbon-12 atomic mass is equal to one-twelfth of the mass of a carbon-12Atomic Mass is equal to the number of protons and neutrons.
What is atomic mass of an atom equal to?
The atomic mass of an element is equal to the number of protons.
What is the atomic mass the same as?
The Atomic Mass is equal to the number of protons and electrons that an element has.
What do you add to protons to equal mass number?
The mass number = protons + neutrons
What equals the number of neutrons plus the number of protons in an atom?
The mass number is a whole number that is equal to the sum of protons and neutrons in an atom. Mass number is represented by the letter (A) orA= Z + N (Z) represent the atomic number or the number of protons in the nucleus.
Does the number of neutrons equal the mass number?
no, the mass number is number of protons in an atom, plus the number of neutrons.
The mass number of an atom is equal to?
the number of nucleons ,,
What is the mass number of an atom equal to?
The mass number of an atom is equal to the number of protons and neutrons that are in the nucleus of the atom. Atoms are the basic units of a chemical element.
What is The atomic mass of an element is equal to?
The number of protons, electrons, and neutrons:P
Are the number of neutrons equal to the atomic number minus the atomic mass?
false
The mass number of an elements is equal to?
the total number of protons and neutrons in the nucleus.
Has a mass about the same as a proton's?
The atomic mass doesn't equal to the number of protons. The number of protons plus the number of neutrons equal to the atomic weight... DAI BI!
