AP Chem 2.5 Quiz 2023

What electron configuration matches an oxygen atom?

• 1s²2s²2p⁶3s2, 3p⁶4s²3d¹⁰4p⁵

• 1s²2s²2p⁴

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹

What atom matches this electron configuration?

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc

• Copper

• Nickel

• Germanium

Valence electrons are located...

• inside the nucleus

• in outer space

• on the outermost orbit of an atom

• 10

• 2

• 8

• 18

Which of the following is not a sublevel

• s

• p

• n

• f

• d

What is the shorthand electron configuration for Sulfur atom?

• [Ar] 3p⁴
• [He] 3s²3p⁴
• [Ne] 3s²3p⁴
• [Na] 3s²3p³
  

Which of the following is a p sublevel element?

• Ca
• Ar
• Re
• Au

If an electron is in it's lowest energy state it is in the

• Ground state

• Excited state

• Ionized state

• Unstable state

What element has this orbital notation?

• lithium

• beryllium

• boron

• carbon

Which of the following is written correctly?

• A

• B

• C

• D