3.4 Electronic Structure of Atoms Openstax Atoms First

What is the arrangement of electrons in the orbitals of an atom called?

• Electron configuration

• Atomic structure

• Quantum mechanics

• Orbital diagram

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NGSS.HS-PS1-1

Which principle states that each added electron occupies the subshell of lowest energy available?

• Aufbau principle

• Pauli exclusion principle

• Shielding principle

• Electron configuration principle

What is the energy order for atomic orbitals?

• s > p > d > f

• f > d > p > s

• p > s > f > d

• d > f > s > p

What is the electron configuration of a helium atom?

• 1s2

• 1s1

• 2s2

• 2s1

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NGSS.HS-PS1-1

Which subshell is filled after the 3p block in the periodic table?

• 4s

• 3d

• 4p

• 3s

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NGSS.HS-PS1-1

What is the electron configuration of a lithium atom?

• 1s2 2s1

• 1s2 2s2

• 1s1 2s2

• 1s1 2s1

Tags

NGSS.HS-PS1-1

What is the electron configuration of a beryllium atom?

• 1s2 2s2

• 1s2 2s1

• 1s1 2s2

• 1s1 2s1

Tags

NGSS.HS-PS1-1

What is the phenomenon called when electrons in orbitals that experience more shielding are less stabilized and higher in energy?

• Shielding

• Repulsion

• Attraction

• Stabilization

What is the principal quantum number that designates the 2p subshell?

• 2

• 1

• 3

• 0

What is the letter that designates the orbital type of the 3d subshell?

• d

• s

• p

• f