Which of these symbols represents an atom with 15 protons, 16 neutrons, and 15 electrons?
A) 
B) 
C) 
D) 
Correct Answer:
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Q11: What two particles reside in the nucleus?
A)
Q14: The atomic number tells us:
A) the sum
Q17: Which subatomic particle has the LOWEST mass?
A)
Q21: Which symbol BEST represents a potassium cation?
A)
Q22: Which symbol represents an atom with 8
Q25: Which scientist proposed that electrons orbit the
Q26: Which symbol BEST represents a lithium cation?
A)
Q28: A certain element is composed of two
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