Which of the following is not one of the four most abundant elements in the body?
A) carbon
B) hydrogen
C) oxygen
D) nitrogen
E) calcium
Correct Answer:
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Q24: Choose the correct formula for the reaction
Q25: Which of the following is NOT a
Q26: Electrons inside a shell travel in
A) straight
Q27: When two or more molecules simply mingle,
Q28: Electrons move around the atomic nucleus in
A)
Q30: Atoms without vacancies are considered to be
A)
Q31: An atom that is considered inert is
A)
Q32: PET (positron-emission tomography) scans use radioisotopes attached
Q33: A tracer is a substance with what
Q34: Which of the following answers include all
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