KAP Electrons

Leina is studying the electron configuration of an oxygen atom. Which of the following electron configurations matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1

Phillip is studying the electron configuration of an atom, which is 1s²2s²2p⁶. How many electrons does this atom have?

• 3

• 6

• 8

• 10

Tags

NGSS.HS-PS1-1

Emily is studying the electron configuration of elements and comes across Chlorine (Cl). Which electron configuration correctly represents Chlorine?

• 1s² 2s² 2p⁶ 3s² 3p⁵

• 1s² 2s² 2p⁶ 3s² 3p⁶

• 1s² 2s² 2p⁶ 3s² 3p⁷

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Harvy and Emma are studying chemistry together. They come across a question about electron capacity in sublevels. They want to know how many electrons can the d sublevel hold in an atom?

• 14

• 10

• 2

• 6

Henry is learning about electron configurations in chemistry class. He wants to know how many electrons can the s sublevel hold in an atom. Can you help him?

• 14

• 10

• 2

• 6

James, Hilveen, Anthony, Miguel, and Connor are studying the electron configuration of atoms. They are discussing the maximum number of electrons that can be held in the p sublevel. How many electrons can the p sublevel hold?

• 14

• 10

• 2

• 6

Tags

NGSS.HS-PS1-1

Olivia is studying the periodic table and comes across an element. She notices that the element has a certain number of valence electrons. How many valence electrons does the element have?

• 7

• 5

• 2

• 8

Tags

NGSS.HS-PS1-1

Emma is studying chemistry and comes across an element with the electron configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰. Which element is she looking at?

• Zinc

• Copper

• Nickel

• Germanium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Naomi is studying the electron configuration of elements. She comes across Aluminum (Al) and wants to identify its electron configuration. Which of the following is the correct electron configuration for Aluminum?

• 1s² 2s² 2p⁶ 3s² 3p¹

• 1s² 2s² 2p⁶ 3s² 3p³

• 1s² 2s² 2p⁶ 3s² 4p¹

Tags

NGSS.HS-PS1-1

Terry and Melissa are studying chemistry and they come across a carbon atom. They want to know the number of valence electrons in it. Can you help them?

• 12

• 6

• 5

• 4

Tags

NGSS.HS-PS1-1