It’s the 3d one
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Answer:
molecules present in, 76 gram of fluorine
Explanation:
atomic weight of fluorine is 19 g per mole, molecular weight is 38g per mole .
Therefore 76 gram fluorine contains 1976=4 gram atom
Answer:
29.8 mg
Explanation:
Just slightly less than 1/2 decay
Answer:
a and d
Explanation:
A) medical imaging devices use radioactive elements with short half-lives to see through the human body and diagnose patients and Controlled fission chain reactions can be used to produce electricity in a nuclear powered submarine
Answer:
said e m a i l m e
Explanation:
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