How do you determine neutrons?

Answer 1

When inspecting the Periodic Table, you will find two number against each element.

The smaller number is the Atomic Number and also the number of protons in the element.

The larger number is the Atomic Mass , which is the total of all the protons and neutrons in that element.

Hence to find the number of neutrons in an element.

Subtract Atomic Mass from Atomic Number.= number of neutrons.

Answer 2

take nitrogen as an example it has an atomic number of 7 that determines the number of protons as 7 positive charges so it takes 7 negative charges (electrons) to even it out so you have 7 electrons and protons. then you take the atomic mass which is 14.01 but you can round it to 14. then you take the atomic number and atomic mass and subtract them (14-7=7) so the number of neutrons is 7.

Answer 3

Neutrons can be determined by subtracting the atomic number from the atomic mass of an element. The atomic mass of an element is the sum of protons and neutrons in the nucleus, so subtracting the atomic number (number of protons) will give you the number of neutrons.

Answer 4

Number of Neutrons = Mass Number - Atomic Number Number of Protons = Atomic Number Number of Electrons = Number of Protons = Atomic Number

Answer 5

Relative atomic mass (the bigger number on the element in the periodic table) subtract the atomic number (the smaller number).

Answer 6

The mass number minus the atomic number.