Electron Configuration Homework Review (Text CH.4.3)

The arrangement of electrons in an atom can be represented by (CHOOSE ALL THAT APPLY)

• is the electron configuration notation

• noble-gas connfiguration

• orbital notation

• nuclear notation

According to the Aufbau principle (SELECT ALL THAT APPLY)

• an electron occupies the lowest energy level that can receive it.

• no 2 electrons in the same atim can have the same set of 4 quantum numbers

• electrons in the same orbital must have opposite spins

• orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron

• all electrons in singly occupied orbitals must have the same spin state.

According to the Pauli Exclusion Principle (SELECT ALL THAT APPLY)

• an electron occupies the lowest energy level that can receive it.

• no 2 electrons in the same atom can have the same set of 4 quantum numbers

• electrons in the same orbital must have opposite spins

• orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron

• all electrons in singly occupied orbitals must have the same spin state.

According to the Hund's Rule (SELECT ALL THAT APPLY)

• an electron occupies the lowest energy level that can receive it.

• no 2 electrons in the same atim can have the same set of 4 quantum numbers

• electrons in the same orbital must have opposite spins

• orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron

• all electrons in singly occupied orbitals must have the same spin state.

How many electrons are in the following electron configuration? 1s²2s²2p³

• 7

• 5

• 12

• it is impossible to determine

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Which atom has the electron configuration? 1s²2s²2p³

• Nitrogen

• Boron

• Magnesium

• it is impossible to determine

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NGSS.HS-PS1-1

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

How many orbitals in the d subshell? 

• 1
• 7
• 3
• 5

What are the maximum electrons in the 3rd electron shell (3rd principle energy level)?

• 9

• 18

• 27

• 12

All of the elements in the Halogen family have 

• 1 valence electron
• 2 valence electrons
• 6 valence electrons
• 7 valence electrons

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