Hihi!
The correct answer is B. The mass number of this nuclide is 131! It's proton number is 56 and it has 75 neutrons (131 - 56 = 75 neutrons).
I hope I helped!
-Jailbaitasmr
<span>the si unit of temperature is its degree celsius because its online you could've just looked it up </span>
Answer:
there will a definite decrease in solute solution
Explanation:
acid reaction acting upon negative charge.
They determined that (1) An atom is mostly empty space with a sense, positively charged nucleus, because most particles passed straight through the gold foil, but occasionally they would deflect, sometimes by a very large margin