Which of the following statements is true?
A) an atom is the smallest particle known to exist
B) there are only about 100 different kinds of atoms that combine to form all substances
C) there are thousands of different kinds of atoms that account for a wide variety of substances
D) a large atom can be photographed with the aid of an ordinary microscope
E) none of the above
Correct Answer:
Verified
Q5: Which of the following are electrically neutral?
A)protons
B)neutrons
C)electrons
D)ions
E)none
Q6: Atoms can be photographed by
A)electron beams.
B)scanning electron
Q7: What did Robert Brown see in his
Q8: The chance that at least one of
Q9: A granite block is mostly empty space
Q11: The difficulty of taking a photograph of
Q12: Atoms heavier than helium were at one
Q13: If we doubled the magnifying power of
Q14: The element gold contains
A)gold atoms.
B)atoms that combine
Q15: Which is the lightest particle?
A)proton
B)electron
C)neutron
D)all about the
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