Biology, 09.07.2019 23:30 isabelvaldez123
The atomic number of krypton (kr) is 36 and its mass number is 84. how many neutrons does it have? a. 18b. 36c. 48d. 72
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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...
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