What is meant by N2?
A) Two nitrogen atoms form a compound.
B) The atomic mass of nitrogen is two.
C) The atomic number of nitrogen is two.
D) Two nitrogen atoms formed a molecule.
Correct Answer:
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Q4: Two or more atoms of the same
Q5: What varies from one isotope of an
Q6: Na+is best known as a(n):
A)ion.
B)compound.
C)molecule.
D)macromolecule.
Q7: An atom has 3 electrons in its
Q8: How many electrons are in the outermost
Q10: What contributes to the calculation of the
Q11: Which subatomic particle carries a negative charge?
A)proton
B)electron
C)neutron
D)nucleus
Q12: An atom of iron has an atomic
Q13: The atomic number represents the number of:
A)protons
Q14: Interpret what is meant by carbon-13.
A)Carbon-13 represents
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