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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.

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What indicates the total number of protons and neutrons in an atom?

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.


What is the mass number or neon?

The mass number of neon is 20. This indicates that neon has a total of 20 protons and neutrons in its nucleus.


What is the mass number of 15.9994?

The mass number of an element is the sum of the number of protons and neutrons in the nucleus of an atom. For an atom with a mass number of 15.9994, it indicates the average atomic mass of an oxygen atom.


What does the number beneath carbon indicates?

The number beneath carbon in the periodic table indicates its atomic number. Atomic number is the number of protons in the nucleus of an atom of that element.


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

The mass number is the sum of protons + neutrons.


Atomic number 50 and mass number 125 contains?

The element with atomic number 50 is tin (Sn). The mass number of 125 indicates that this particular isotope of tin contains 75 neutrons (mass number - atomic number).


What is Sulfur's mass number and atomic number?

Sulfur has atomic number 16 and atomic mass 32.


What is the atomic number and mass number of bromine?

Bromine is a non meta element. Atomic mass of it is 80.


The sum of the protons and the neutrons indicates the .?

By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.


How do you type Radon with its mass and atomic number on computer?

To type the chemical symbol for Radon with its mass and atomic number on a computer, you can use the following format: ^222Rn. This notation indicates that Radon has an atomic number of 86 and a mass number of 222.


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 does a number 4 indicate for helium?

4 is the mass number of helium (mass number = number of protons + number of neutrons)