What does "X" represent in the following symbol? 
A) tin
B) copper
C) palladium
D) niobium
E) uranium
Correct Answer:
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Q2: Which of the following statements is TRUE
Q3: Isotopes differ in the number of what
Q3: Identify the description of an atom.
A) neutrons
Q6: If 3.6 g of chlorine combines with
Q11: Identify the element that has an atomic
Q14: What element is defined by the following
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Q26: How many electrons are in arsenic?
A) 33
B)
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Q59: Predict the charge that an ion formed
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