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Atomic number -> Number of protons

Mass number -> Number of protons and neutrons

So. if you substract atomic number from the mass number you get the number of neutrons.

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โˆ™ 2016-03-01 11:11:10
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Q: How do you find the number of neutrons in an atom given only the atomic number and the mass number?
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How do you Determine the number of neutrons for the given isotopes?

The mass number of the given atom is equivalent to the sum of the numbers of protons and neutrons. The atomic number of an atom equals to the number of protons in that atom. Therefore, the number of neutrons of an atom can be found by subtracting the atomic number from the mass number.


A given atom of calcium has an atomic number of 20 and an atomic weight of 42 This atom has?

22 neutrons.


What is atomic mass A and neutron number N for given atom?

Atomic mass is the number of protons and neutrons that make up an atom. The neutron number is only the number of neutrons present in the atom. This can be found by subtracting the number of protons from the atomic mass.


What do you have when you subtract the atomic no from atomic mass?

Atomic number is number of protons in an atom while atomic mass is the sum of protons and neutrons in an atom when you subtract you will get the number of neutrons in an atom.


What is the number of neutrons in an atom affects the atomic what?

The number of neutrons in an atom can affect the atomic mass of an atom.


How do you determine the number of neutrons in the nucleus?

An atom's atomic number is equal to its number of protons. An atom's atomic mass is the sum of the number of protons and neutrons in its nucleus. Consequently, an atom's number of neutrons is equal to its atomic mass minus its atomic number.


How can you determine the number of neutrons in an atom if you know what the atomic number and atomic mass is?

The atomic number when subtracted from the atomic mass will give the number of neutrons in an atom. Atomic Mass - Atomic Number = Number of neutrons. Explanation: The atomic mass of any atom is the sum of protons and neutrons which are present in the nucleus of the atom. The atomic number of any atom gives the number of protons in the atom and also gives the number of electrons (Only if it is a neutral atom ,i.e., when it is not an ion). Thus, The number of neutrons can be calculated by subtracting the atomic number from the atomic mass.


Equal to the mass number minus the atomic number?

It is equal to the number of neutrons in the given atom.


Do isotopes of a given atom differ in number?

The atomic number is the same; the number of neutrons is different.


The number of neutrons in an atom affects the atomic?

The number of neutrons in an atom affects the atomic mass number or atomic weight.


How do you calculate the number of protons neutrons and electrons in a neutral atom?

The number of electrons in an atom is always equal to the number of protons in that same atom. Since the atomic mass of a periodic element equals the weight of the atoms protons AND its neutrons, the following equation can be used to calculate the number of any given particle in an atom: number of neutrons = atomic mass - atomic number


What would you do if you wanted to know the number of neutrons in an atom of a given element?

Neutrons, like protons are considered to have a mass of about 1. To find the number of neutrons, subtract the atomic number from the atomic mass.


How do you get the number neutrons of an atom?

The number of neutrons is the mass number of the atom minus its atomic number.


How can you figure out the number of neutrons in an atom?

You subtract the atomic number from the atomic weight. For example, if you have a helium atom and its atomic weight is 4 and you subtract its atomic number (2) the number of neutrons in the helium atom is 2.


How many neutrons are in an Bromine atom?

o calculate the number of neutrons in an atom, find that atom's atomic number and atomic weight on the Table of Elements. The atomic number is the same as the number of protons in an atom's nucleus. The atomic weight is the same as the total number of protons and neutrons in an atom's nucleus. Subtract the atomic number from the atomic weight to find the number of neutrons. Bromine's atomic number is 35 and its atomic weight is 80, so it contains 45 neutrons. 80 total particles - 35 protons = 45 neutrons


How can you calculate the number of neutrons in the atom?

To calculate the number of neutrons in an atom, subtract the atomic number from the atomic weight. That will give you the number of neutrons. The atomic number is the number of protons. The atomic weight consists of the number of protons plus the number of neutrons. (The electrons add very little to the atomic weight.)


How can you determine the number of neutrons in a neutral atom?

You would need the atom's atomic mass and atomic number. Subtract atomic number from atomic mass to get the number of neutrons.


What is the atomic number of in atom?

atomic number is how much protons(positive atom) and neutrons(neutral atom) are there in an element. therefore an atom does not have an atomic number


What do you subtract the atomic number from to find the number of neutrons in an atom?

Mass number - Atomic number = Number of neutrons.


How do you calculate how many protons neutrons and electrons are in an atom?

The number of protons is given to you-- it's the atomic number. The number of electrons always equals the number of protons. To calculate the number of neutrons, subtract the number of protons from the atomic mass number given.


How many neutrons are in one atom?

The number of neutrons depends on the atom. In general, mass number = atomic number + number of neutrons.


What does the number of neutrons determine?

The number of neutrons determines the neutron number and the isotope of that atom. The number of neutrons is the atomic number - atomic mass.


How do you calculate the atomic mas based on the number of protons and neutrons of an atom?

Atomic mass is simply the sum of the number of protons and the number of neutrons. If an atom has "A" protons and "B" neutrons, its atomic mass is A + B.


How is the atomic number and mass number different?

The atomic number is the number of protons in the nucleus of an atom of any given element. The mass number is the number of protons and neutrons in the nucleus of an atom of an isotope of an element.


A carbon atom has a mass number of twelve and an atomic number of six How many neutrons does it have?

6, and atom with no charge has the same amount of protons and neutrons. protons = atomic number. also mass number - atomic number = neutrons.