Electron Configurations Question Preview (ID: 21843)
Practice Writing And Reading Electron Configurations. Expanded And Noble Gas Notations.
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What is the proper expanded electron configuration for a neutral atom of Fluorine (F)?
a) 1s2 2s2 2p7
b) 1s2 1p6 2s2 2p7
c) 1s2 2s2 3p7
d) 1s2 2s2 1p7
Which neutral atom has the follwing configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9
a) Silver (Ag)
b) Copper (Cu)
c) Gold (Au)
d) Cadmium (Cd)
Which two quantum sub-levels will fill after 4f?
a) 5d then 6p
b) 6d then 7p
c) 6p then 7s
d) 4d then 4p
What is the proper Noble Gas notation for the electron configuration of a neutral atom of Germanium (Ge)?
a) |Ar| 4s2 3d10 4p2
b) |Kr| 4s2 3d10 4p2
c) |Ar| 4s2 4d10 4p2
d) |Ne| 4s2 3d10 4p2
Which neutral atom has the following electron configuration: |Xe| 6s2 5d4 4f14
a) Tungsten (W)
b) Lutetium (Lu)
c) Rhenium (Re)
d) Hassium (Hs)
Which best describes the outermost energy level in the orbital diagram for Carbon (C)?
a) A single electron in the 2s and three single electrons in the 2p
b) A pair of electrons in the 2s and 2 single electrons in the 2p
c) A pair of electrons in the 2s and a pair of electrons in the 2p
d) A pair of electrons in the 2s and three single electrons in the 2p
Which is the expanded electron configuration for an ion of Calcium?
a) 1s2 2s2 2p6 3s2 3p6
b) 1s2 2s2 2p6 3s2 3p6 4s2
c) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
d) 1s2 2s2 2p6 3s2 3p6 4s1
Which of the following CANNOT be described by the following electron configuration: 1s2 2s2 2p6 3s2 3p6
a) O2-
b) Ca2+
c) Ar
d) P3-
Which of the below explains why the 4s sub-level fills before the 3d sub-level
a) Aufbau Principle
b) Hund's Rule
c) Pauli Exclusion Principle
d) Octet Rule
Which of the below explains the presence of multiple un-paired electrons in a given sub-level?
a) Hund's Rule
b) Aufbau Principle
c) Pauli Exclusion Principle
d) Octet Rule
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