🎁BACK-TO-SCHOOL DEAL. Subscribe Now to get 40% OFF at only 8.49 USD/month, only valid until Sep 30th, 2024

Question

Question
How many protons are in the nucleus of calcium (Ca)? A. 10 B. 40 C. 40.08 D. 20

Asked By MidnightSapphire47 at

Answered By Expert

Damian

Expert · 1.0k answers · 1k people helped

Answer

D

Explanation

The number of protons in the nucleus of an atom is determined by its atomic number. The atomic number of calcium (Ca) is 20, which can be found on the periodic table. This atomic number indicates that a calcium atom has 20 protons in its nucleus. Therefore, the correct answer is D. 20.

🧑‍🏫 More Questions