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Question from: Chemistry

An isotope has atomic number 15 and mass number 31. The number of protons it contains is

A)  

16

B)  

31

C)  

46

D)  

15

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j

juanbacan

hace 18 días

Solution

0

Step-by-step reasoning:

  • The atomic number = number of protons.
  • Here, atomic number = 15 → therefore, number of protons = 15.
  • The mass number (31) represents protons + neutrons, but does not change the number of protons.

Final Answer: 15

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