The answer is going to be a nuclear reactor
Electrons contribute greatly to the atom's charge, as each electron has a negative charge equal to the positive charge of a proton. Scientists define these charges as “+1” and “-1. ” In an uncharged, neutral atom, the number of electrons orbiting the nucleus is equal to the number of protons inside the nucleus.:
The units for k need to cancel when multiplied by [A][B] to leave the units for rate which should be M·s^-1
(M^-1 ·s^-1)*(M)*(M) = M·s^-1
Answer:

Explanation:
1. Moles of CCl₄

2. Molar mass of CCl₄
MM = 1 × 12.01 + 4 × 35.5 = 12.01 + 142 = 154.0 g/mol
3. Mass of CCl₄

4. Volume of CCl₄

Answer:
Atomic number ---> number of protons in the nucleus of an atom
Atomic mass ----> the total mass of protons, neutrons, and electrons in an atom