Anyone good with chemistry?

[DC]

I'm doing review homework for ap chemistry and I have to find # of proton, neutrons, electron. And I came up to this chemical Strontium-80. what does 80 behind strontium means???

[Chaos_Sorcerer]

I'm nowhere near that level, but the 80 is the mass number. Strontium-80 is an isotope of strontium, meaning that it has more neutrons than the regular atom...I think. Google it lol

[Seamonster420]

50 minutes ago, Chaos_Sorcerer said:

I'm nowhere near that level, but the 80 is the mass number. Strontium-80 is an isotope of strontium, meaning that it has more neutrons than the regular atom...I think. Google it lol

Correct. 80 refers to the combined number of protons and neutrons. Strontium has 38 protons and in the case of this particular isotope, 42 neutrons.

[Arika]

jesus. has Off-Topic turned into a homework help forum now?

[ARikozuM]

2 hours ago, DC said:

I'm doing review homework for ap chemistry and I have to find # of proton, neutrons, electron. And I came up to this chemical Strontium-80. what does 80 behind strontium means???

Strontium-80 has 80 neutrons and protons. You add up the neutrons and protons to get the approx. mass of the atom. 

You have to find how many protons it has by looking at the atomic number (this won't change for any element, i.e. 1=hydrogen and 2=helium, etc.). 

The electrons will change based on the charge, but since you didn't state a charge it'll be the same as the atomic number (when determining electrons take the negative of the charge shown, i.e. +1 means X-1 electrons).