Nitrogen,with an atomic number of 7,has ____ electron(s) in the first energy level and ____ electrons in the second energy level.
A) one; six
B) two; five
C) three; four
D) four; three
E) five; two
Correct Answer:
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Q22: A salt will dissolve in water to
Q23: The column of water extending in tubes
Q24: In _ bonds,both atoms exert the same
Q25: Atoms with a(n)_ are more likely to
Q26: When exposed to water,sodium chloride (NaCl)_.
A)
Q28: Which statement is false?
A) A molecule
Q29: Water is important to the interactions of
Q30: A molecule consists of _.
A) radioactive
Q31: The bond in table salt (NaCl)is _.
Q32: Figure 2.11B
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