Question

what is the atomic symbol and mass number for an atom containing 50 protons and 64 neutrons? answer: a 40sn b 114sn c 64sn d 64gd e 114gd

Explanation:

Step1: Identify the element by protons

The atomic number is equal to the number of protons. With 50 protons, the element is tin, symbol Sn.

Step2: Calculate the mass number

The mass number is the sum of protons and neutrons. So, mass number = 50 (protons)+64 (neutrons) = 114.

Answer:

B. $^{114}\text{Sn}$