The last one. A bond of two or more of the same element.
Answer:More of the radioactivity is lost during the first half-life than in later half-lives.
Explanation: Passed test with 98
Answer:
A compound by definition contains at least 2 different kinds of atoms. A Hydrogen molecule contains only one kind of atom, 2 hydrogen atoms
Answer:
Stay in shade
Explanation:
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Answer:
introducing a radioactive tracer into a sample of pesticide
Explanation:
