Quantum Mechanical Model of the Atom

What is the maximum number of electrons in an f sublevel?

• 6

• 10

• 14

• 18

What does the Aufbau Principle state about the position of electrons in an atom?

• Electrons occupy the highest energy positions first.

• Electrons are distributed randomly in available orbitals.

• Electrons occupy positions of the lowest energy first.

• Electrons are added in pairs to the highest energy orbital available.

According to the Aufbau Principle, which orbital is filled immediately after the 4s orbital?

• 3d

• 4p

• 5s

• 3p

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NGSS.HS-PS1-1

According to Hund's Rule, how should electrons be placed within a sublevel?

• Pair all electrons in one orbital before placing electrons in other orbitals.

• Place one electron per orbital with the same spin before pairing them.

• Fill all orbitals with electrons before placing any in the next sublevel.

• Electrons can be placed randomly within the orbitals of a sublevel.

What is the maximum number of electrons that can occupy the 1s orbital?

• 1

• 2

• 3

• 4

Based on the orbital notation, how many total electrons does Nitrogen (N) have?

• 5

• 6

• 7

• 14

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NGSS.HS-PS1-1

Each sub level has its maximum number of orbitals. How many orbitals are in the third principal energy level?

• 3

• 6

• 9

• 12

How many orbitals are present in the 4p sub level?

• 7

• 5

• 4

• 3

Which of the following statement is wrong?

• Two electrons must occupy each equal energy orbital before additional electrons can occupy the same orbitals.

• A maximum of two electrons may occupy the same orbitals.

• In filling up orbitals, electron occupies the lowest energy orbital first before the higher energy orbitals.

• None of the choices.

If the first and second energy levels of an atom are full, then what would be the total number of electrons in the atom?

• 6

• 8

• 10

• 18

Tags

NGSS.HS-PS1-1