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The mass number of an isotope indicates the total number (the sum) of protons and netrons in an atom.

The number of protons is determined by the atomic number.

The number of neutrons can be found by subtracting the atomic number from the mass number.

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14y ago

The Atomic Mass number, the one under the letter for the element.

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Q: What indicates the total number of protons and neutrons in an atom?
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Related questions

The mass number of an atom indicates the number of what?

The mass number is the sum of protons + neutrons.


What they do mass number?

Mass number is about the neutrons and protons. The total of neutrons and protons.


What is the mass number and what does it indicates?

The mass number of an atom is the sum of the numbers of protons and neutrons in the nucleus of the atom. It also indicates the total positive charge on the nucleus.


An element's atomic mass number is?

It is about neutrons and protons. The total of neutrons and protons.


What term best indicates the total number of neutrons and protons in a particular isotope of an element?

The atomic mass number is the sum of the protons and neutrons of an element. The protons are given by the atomic number, so the neutrons can be found by subtracting the mass number by the atomic number. Both the mass and atomic numbers can be found on the periodic table.


What is the total amount of protons and neutrons in an atom?

The total amount of protons and neutrons in an atom is its mass number.


What is the total number of protons and neutrons in sulfur?

Sulfur has 16 electrons, protons and neutrons.


The mass number of an element is equal to the total number of?

The mass number is the average atomic mass of all the isotopes that are found in nature.


The atomic mass of an atom is determined by the combined masses of its what?

The total number of protons plus the total number of neutrons


How many neutrons are usually found in sulfurs nucleus?

The mass number indicates the number of protons AND neutrons in the nucleus. Since the number of neutrons can vary, so can the mass number. The different versions of elements based on the number of neutrons are called isotopes. Sulfur-35 has an atomic mass of 35. So, it has a total of 35 protons and neutrons in the nucleus. Since sulfur always has 16 protons, then the number of neutrons in this isotope is 19. (35 - 16 = 19)


The atomic number of an atom indicates the number of?

The atomic number is the number of protons in the atom. In the case of a neutral atom (as opposed to an ion), the atomic number is also equal to the total number of electrons.


The combined number of protons and neutrons?

Number protons + number neutrons is called the mass number or the atomic mass.