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Which of the isotopes are radioactive? Check all that apply. hydrogen-1 hydrogen-3 helium-4 carbon-14 uranium-235 copernicium-277 fermium-252 carbon-12
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3 votes
Which of the isotopes are radioactive? Check all that apply.

hydrogen-1
hydrogen-3
helium-4
carbon-14
uranium-235
copernicium-277
fermium-252
carbon-12

User Kwana
by
7.0k points

2 Answers

7 votes

Answer:

hydrogen-3

carbon-14

uranium-235

copernicium-277

fermium-252

:)

Step-by-step explanation:

User Arhowk
by
7.6k points
2 votes

Answer:

here you go

Step-by-step explanation:

hydrogen-3

carbon-14

uranium-235

copernicium-277

fermium-252

User Sanwuwy
by
7.5k points
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