How many protons and electrons are there in the calcium ion?
A) 20 protons, 20 electrons
B) 20 protons, 22 electrons
C) 20 protons, 18 electrons
D) 20 protons, 19 electrons
Correct Answer:
Verified
Q23: Which of the following anions has the
Q24: Which of the following anions has the
Q25: Which of these polyatomic ions has a
Q26: How many protons and electrons are there
Q27: How many protons and electrons are there
Q29: What is the name and symbol of
Q30: Iron pyrite (fool's gold)is iron (II)sulfide. What
Q31: What is the correct name for BaF2?
A)Barium
Q32: The correct name for Cr2O3 is:
A)chromium (III)oxide
B)chromium
Q33: The reaction of calcium and sulfur produces:
A)Ca2S
B)CaS2
C)CaS
D)Ca2S3
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