Chemistry - Unit 3 Electron Configuration Review

The subatomic particle that plays the greatest role in determining the chemical and physical properties of an element is the:

• proton

• neutron

• electron

• deuterium

• quark

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The shape (not the size) is of an electron's orbital is determined by the electron's

• position

• speed

• principal quantum number

• sublevel

• spin

A 3p orbital can contain a maximum of ______ electrons.

• 2

• 3

• 4

• 5

• 6

How many sublevels are in the fourth principal energy level?

• 4

• 16

• 18

• 32

How many electrons can fit in the 5f sublevel?

• 5

• 7

• 14

• 25

• 50

How many electrons can the second principal energy level hold?

• 2

• 4

• 6

• 8

• none of these

Which of the following has the given electron configuration: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²

• Sr

• Sr+2

• Rb

• Rb+1

• none of these

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Electrons enter orbitals of lowest energy first is stated by which of the following:

• Aufbau principle

• Pauli Exclusion principle

• Hund's rule

• none of these

Electrons enter orbitals within a sublevel singly before pairing up is known as:

• Aufbau principle

• Pauli Exclusion principle

• Hund's rule

• none of these

Which of the following is the correct orbital electron configuration for nitrogen?

• 
• 
• 
• 

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