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 these statements are true.
Correct Answer:
Verified
Q4: Solid matter is mostly empty space.The reason
Q5: What makes an element distinct?
A)the number of
Q6: How many different elements are in a
Q7: Which of these statements is true?
A)A molecule
Q9: A molecule has
A)mass.
B)structure.
C)energy.
D)all of these
E)none of these
Q10: Atoms heavier than helium were made by
A)photosynthesis.
B)thermonuclear
Q11: Which of the following is not a
Q13: If we doubled the magnifying power of
Q13: Which of the following are electrically neutral?
A)proton
B)neutron
C)electron
D)ion
E)none
Q45: An atomic mass unit (amu)is 1/12 the
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