CHE 3332 Lecture 22: KIC Document 9

17 d) 98 e) 17.09 Using the rules of significant figures, calculate the following: 4.0021-0.247 3.755 b) 4 c) 3.7551 d) 3.76 e) 3.8 28, Ca2+ has a) 20 protons, 20 neutrons, and 18 electrons b) 22 protons, 20 neutrons, and 20 electrons c) 20 protons, 22 neutrons, and 18 electrons d) 22 protons, 18 neutrons, and 18 electrons e) 20 protons, 20 neutrons, and 22 electrons 29. How many electrons in an atom can have the quantum numbers n -3,/-22 a) 2 b) 5 c) 10 d) 18 30. What is the I quantum number for a 4p orbital? a) 2 b) 1 3 d) e) more than one of the above