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Author Question: The atomic number of an element that appears in the periodic table of the elements represents A) ... (Read 127 times)

schs14

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The atomic number of an element that appears in the periodic table of the elements represents
 
  A) the number of neutrons in the nucleus of an atom of that element.
  B) the number of protons in the nucleus of an atom of that element.
  C) the number of atoms in a molecule of the element.
  D) the number of electrons in the nucleus of an atom of that element.
  E) the number of nuclei in an atom of the element.

Question 2

A ball is thrown vertically into the air. Because of air resistance, its time coming down compared with its time going up is
 
  A) less.
  B) the same.
  C) more.



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kaylee05

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Answer to Question 1

B

Answer to Question 2

Answer: C




schs14

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Reply 2 on: Jul 29, 2018
:D TYSM


patma1981

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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