Which element indicated by letter in the following periodic table is the poorest conductor of electricity and heat?
A) A
B) B
C) C
D) D
Correct Answer:
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Q76: The gas Freon-11,CCl3F,contains
A)C4+,Cl-,and F- ions.
B)C4+,Cl3-,and F- ions.
C)C4+
Q77: KH2PO4 is
A)hydropotassium phosphate.
B)potassium dihydrogen phosphate.
C)potassium diphosphate.
D)potassium hydrogen(II)phosphate.
Q78: What group of elements does the shaded
Q79: The ion NO2- is named
A)nitrate ion.
B)nitrite ion.
C)nitrogen
Q80: What group of elements does the shaded
Q82: Which element indicated by letter in the
Q83: Which element indicated by letter in the
Q84: Which element indicated by letter in the
Q85: Which element indicated by letter in the
Q86: Use the periodic table below to answer
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