What does "X" represent in the following symbol? 
A) silicon
B) sulfur
C) zinc
D) ruthenium
E) nickel
Correct Answer:
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Q2: Which of the following statements is TRUE
Q3: Isotopes differ in the number of what
Q5: Dalton's atomic theory states _.
A) that all
Q7: When two elements, A and B, form
Q8: Determine the number of protons, neutrons, and
Q9: Determine the number of protons, neutrons, and
Q11: Identify the element that has an atomic
Q12: Which of the following is an example
Q18: All samples of a given compound, regardless
Q19: If 6.0 g of carbon combines with
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