Multiple choice

The number above each element represents what?

  1. neutrons in the nuclei

  2. protons in the nuclei

  3. electrons in the nuclei

  4. no correct answers

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The atomic number, which is the number displayed above each element on the periodic table, represents the number of protons in the nucleus of an atom of that element.