When the mass number of oxygen is 16, how many neutrons does oxygen have in its nucleus?

Answer 1

Mass number equals number of sub atomic particles in the nucleus.

Atomic number gives the number of protons, which equals the number of electrons. The atomic number for oxygen is 8, so the atom has 8 electrons and 8 protons.

Protons and neutrons are found in the nucleus, so the number of neutrons is found by subtracting the proton number from the mass number I.e. 16 - 8 = 8

Oxygen exists in isotopic form and has an isotope with mass number 18. This atom will have 10 neutrons as 18 - 8 = 10

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Noah Aldrich

#8#

Oxygen has an atomic number of #8#, and the mass number of an atom is the sum of its atomic number plus its neutron number.

We got the mass as #16# units, and so it'll have #16-8=8# neutrons.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 3

Jose Ayala

When the mass number of oxygen is 16, it has 8 neutrons in its nucleus.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.