Which of the following elements is important in smaller quantities than is true for the six major elements in living things?
A) carbon
B) iron
C) oxygen
D) nitrogen
E) hydrogen
Correct Answer:
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Q3: A chemist found one atom with 9
Q4: Which of these describes the structure of
Q5: A neutral atom of phosphorus was found
Q6: When the number of protons does not
Q7: Which of the following is positively charged?
A)proton
B)electron
C)atomic
Q9: The number of protons found in an
Q10: A sulfur atom has 6 electrons in
Q11: The identity of any atom can be
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Q13: Which of the following would be the
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