1. The m l quantum number for an electron in the 5forbital: a) may be +1/2 or -1

Question

1. The ml quantum number for an electron in the 5forbital: a) may be +1/2 or -1/2 b) is four c) none of these is correct d) can have any integer value from 0 to 5 e) may be any value from -5 and +5 2. The set of quantum numbers, n = 2, l =2, ml = 0 a) describes one of five orbitals of a similar type b) describes an electron in a 2p orbital c) is not allowed d) describes an electron in a 2d orbital 3. Which (if any) of the following statements is false? a) There are five d orbitals in every energy level. b) A set of d orbitals can have a maximum of 10electrons c) The three p orbitals in a p subshell are mutuallyperpendicular (orthogonal). d) The d orbitals in an energy level are always filled afterthe p orbitals in the same energy level. 1. The ml quantum number for an electron in the 5forbital: a) may be +1/2 or -1/2 b) is four c) none of these is correct d) can have any integer value from 0 to 5 e) may be any value from -5 and +5 2. The set of quantum numbers, n = 2, l =2, ml = 0 a) describes one of five orbitals of a similar type b) describes an electron in a 2p orbital c) is not allowed d) describes an electron in a 2d orbital 3. Which (if any) of the following statements is false? a) There are five d orbitals in every energy level. b) A set of d orbitals can have a maximum of 10electrons c) The three p orbitals in a p subshell are mutuallyperpendicular (orthogonal). d) The d orbitals in an energy level are always filled afterthe p orbitals in the same energy level.

Explanation / Answer

1. c) None of these are correct. The f orbital has aquantum number l = 3. - 3

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