How many protons does the As3- ion possess?
A) 30
B) 36
C) 4
D) 8
E) 33
Correct Answer:
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Q65: Which element has the chemical symbol,Sn?
A) samarium
B)
Q66: An atom of 25Mg contains _ electrons.
A)
Q67: Identify a cation.
A) an atom that has
Q68: What is the chemical symbol for thallium?
A)
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Q71: How many electrons are in each neutral
Q72: How many protons (p)and neutrons (n)are in
Q73: Isotopes differ in the number of
A) gamma
Q74: Which of the following represent isotopes? A:
Q75: Which element has the chemical symbol,Rn?
A) radium
B)
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