How many protons are in nickel?
A) 28
B) 30
C) 31
D) 30.7
E) 58.7
Correct Answer:
Verified
Q59: Silver has an atomic mass of 107.868
Q60: Identify the charges of the protons,neutrons,and electrons.
A)
Q61: What does "X" represent in the following
Q62: An atom that has an atomic number
Q63: Identify an anion.
A) an atom that has
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)
Q69: How many electrons does the Se2- ion
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