An atom of 14C contains __________ protons.
A) 6
B) 20
C) 8
D) 10
E) 14
Correct Answer:
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Q195: An atom of 118Xe contains _ neutrons.
A)54
B)172
C)64
D)110
E)118
Q210: Which of the following elements is a
Q211: Which one of the following is a
Q212: A certain mass of carbon reacts with
Q213: The formula of a salt is XCI2.
Q214: An atom of 131Xe contains _ electrons.
A)131
B)185
C)77
D)123
E)54
Q217: What is the molecular formula for 1-hexanol?
A)C6H12OH
B)C6H13OH
C)C6H14OH
D)C7H13OH
E)C7H14OH
Q218: An ion has 8 protons, 9 neutrons,
Q228: How many electrons does the Al3+ ion
Q240: Predict the charge of the most stable
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