Electron Orbitals

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

Which of the following sub-levels is correctly designated?

• 1p⁵

• 3f⁹

• 2p⁶

• 3d¹¹

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

If the 1^st energy level is already filled up with 2 electrons, what level should be filled up next?

• Second

• Third

• Fourth

• Fifth

Tags

NGSS.HS-PS1-1

“An electron should occupy the lowest energy level first before the higher energy level” is stated in what rule?

• Hund's rule

• Pauli Exclusion Principle

• Aufbau Principle

• All of the above.

What is the electron configuration of Argon?

• 1s² 2s² 2p⁶

• 1s² 2s² 2p⁶ 3s¹

• 1s² 2s² 2p⁶ 3s²

• 1s² 2s² 2p⁶ 3s² 3p⁶

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which atom has an electron configuration of 1s² 2s² 2p⁶?

• He

• Ne

• Ar

• Xe

Tags

NGSS.HS-PS1-1

What is the electron configuration of Gallium, ₃₁Ga?

• 1s² 2s² 2p⁶ 3s² 3p⁵ 4s² 3d¹⁰ 4p¹

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p¹

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹ 4p²

• 1s² 2s² 2p⁶ 3s² 3p⁵ 4s² 3d¹⁰ 4p²

Tags

NGSS.HS-PS1-1

Which one of the following electron configurations is INCORRECT?

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p³

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁹ 4p²

Tags

NGSS.HS-PS1-1