Can u show me how to calculate the neutron-to-proton ratio of an atom?

For example: tin-134 or silver-107

atomic number is number of protons. For Sn that is 50.

p + n = 134 which allows you to calculate number of neutrons as 84
Then n/p ratio is 84/50= ??
Check my work.

So the ratio is 1.68 then?

For Sn-134 yes. That looks high on my N/P chart but that's the way the numbers work out. That's a queer looking isotope of Sn which I guess is why. The ratio for Ag looks better on my chart.

12C

6

Sure! To calculate the neutron-to-proton ratio of an atom, we need to know the number of neutrons and protons in the nucleus.

Let's take the example of tin-134. The atomic number of tin (Sn) is 50, which means it has 50 protons. The mass number of tin-134 is 134, which represents the total number of protons and neutrons in the nucleus.

To calculate the number of neutrons, subtract the atomic number (protons) from the mass number:
Neutrons = Mass Number - Atomic Number
Neutrons = 134 - 50
Neutrons = 84

So, tin-134 has 50 protons and 84 neutrons. To calculate the neutron-to-proton ratio, divide the number of neutrons by the number of protons:
Neutron-to-Proton Ratio = Neutrons / Protons
Neutron-to-Proton Ratio = 84 / 50
Neutron-to-Proton Ratio ≈ 1.68

Now let's take the example of silver-107. The atomic number of silver (Ag) is 47, and the mass number of silver-107 is 107.

Neutrons = Mass Number - Atomic Number
Neutrons = 107 - 47
Neutrons = 60

Silver-107 has 47 protons and 60 neutrons.

Neutron-to-Proton Ratio = Neutrons / Protons
Neutron-to-Proton Ratio = 60 / 47
Neutron-to-Proton Ratio ≈ 1.28

So, the neutron-to-proton ratio of tin-134 is approximately 1.68, and the neutron-to-proton ratio of silver-107 is approximately 1.28.