How do we find the number of neutrons in an atom?
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Add the atomic number and mass number together
Subtract the number of electrons from the number of protons
Subtract the number of protons from the mass number bot asnwer
Subtract the number of protons (which is equal to the atomic number) from the mass number.
To find the number of neutrons in an atom, you can use one of the following methods:
Method 1: Add the atomic number and mass number together
1. Identify the atomic number of the atom. This represents the number of protons in the nucleus.
2. Determine the mass number of the atom. This represents the total number of protons and neutrons in the nucleus.
3. Add the atomic number and the mass number together.
Number of neutrons = Mass number - Atomic number
Method 2: Subtract the number of protons from the mass number
1. Identify the atomic number of the atom. This represents the number of protons in the nucleus.
2. Determine the mass number of the atom. This represents the total number of protons and neutrons in the nucleus.
3. Subtract the atomic number from the mass number.
Number of neutrons = Mass number - Atomic number
Both methods will give you the same result, which is the number of neutrons in the atom.
To find the number of neutrons in an atom, you need to know the atomic number and the mass number of the element. The atomic number represents the number of protons in the nucleus of the atom, while the mass number represents the total number of protons and neutrons.
The first method is to add the atomic number and the mass number together. This assumes that the atom is electrically neutral (equal number of protons and electrons). However, this method may not always be accurate if the atom is ionized or if there are isotopes present.
A more accurate method is to subtract the number of protons from the mass number. The number of protons is equal to the atomic number, and the number of electrons is usually equal to the number of protons in a neutral atom. Therefore, subtracting the atomic number from the mass number will give you the number of neutrons.
So the correct answer to find the number of neutrons in an atom is to subtract the number of protons (equal to the atomic number) from the mass number.