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The atomic number of krypton (Kr) is 36, and its mass number is 84. How many neutrons does it have?

A) 18
B) 36
C) 48
D) 72

User Mendez
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2 Answers

1 vote

Answer:

C)48

Step-by-step explanation:

pluto is never wrong

User Adamjansch
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I believe the Answer is B
User Artalus
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