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  • 01-10-2020
  • Chemistry
contestada

(40 pts)Identify the mass number of an ion with 20 protons, 22 neutrons, and 18 electrons.

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Nikeon202
Nikeon202 Nikeon202
  • 14-10-2020

Answer:

42

Explanation:

Relative mass = number of protons + number of neutrons

Relative mass = 20 + 22

Relative mass = 42

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