Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-chemistry-275a3d2c0a48

What is the mass number of an atom?

Protons plus neutrons.

Start playing free

  1. Protons plus neutrons ✔
  2. Protons plus electrons
  3. Neutrons plus electrons

Why: The mass number is the sum of the number of protons and neutrons in a nucleus.

Huh, didn't know that: The mass number is the sum of the number of protons and neutrons in a nucleus.

The dad joke
That adds up nicely!
Like this card?
Play the game

References

Answer: Protons plus neutrons. The mass number is the sum of the number of protons and neutrons in a nucleus.

  1. Chemistry en.wikipedia.org/wiki/Chemistry
    The mass number is the sum of the number of protons and neutrons in a nucleus.
    Checked 2026-11-07.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

How Things WorkWhat does a Safety Data Sheet (SDS) tell you about a chemical?How Things WorkWhy might you wear gloves and goggles when handling a chemical?How Things WorkWhat do hazard pictograms on an SDS container show?

That's stuff everyone should know.