Question

How many neutrons are present in atoms of argon-39?

Answer 1

Hello There!!

Step-by-step explanation:

Argon has 22 neutrons.

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Answer 2

Name, Argon. Symbol, Ar. Atomic Number, 18. Atomic Mass, 39.948 atomic mass units. Number of Protons, 18. Number of Neutrons, 22. Number of Electrons, 18.