Electron Configurations

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

Tags

NGSS.HS-PS1-1

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵
• 1s²2s²2p⁴
• 1s²2s²2p⁶
• 1s²2s²2p⁶3s²3p⁶4s²3d¹

Tags

NGSS.HS-PS1-1

How many electrons can the d sublevel (the d orbitals) hold?

• 14

• 10

• 2

• 6

Tags

NGSS.HS-PS1-1

Choose the correct shortcut configuration for iodine.

• [Ar]4s²4d¹⁰4p⁵

• [Kr]5s²4d¹⁰5p⁵

• [Xe]5s²5d¹⁰5p⁵

• none of the above

Tags

NGSS.HS-PS1-1

Which area on the periodic table represents the electrons in the "d" sublevel (d orbitals)?

• representative elements

• columns 3-8

• rare earth elements

• transition elements

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

Each orbital can hold how many electrons?

• 5

• 4

• 8

• 2

What is incorrect about this orbital diagram?

• Both arrows in the 2p box should be pointing up

• There is nothing incorrect with this diagram

• In the 2p box there should only be 1 electron in the first 2p box and one in the 2nd 2p box pointing in the same direction.

• All the arrows should be pointing up.

Tags

NGSS.HS-PS1-1

In an electron configuration, what follows 4s?

• 4p

• 3d

• 4s

• 2f

Tags

NGSS.HS-PS1-1

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2