Electron Configurations and Quantum Numbers

Which type of orbital is shaped like a sphere?

• s orbital
• p orbital
• d orbital
• f orbital

What is the electron configuration for F?

• 1s2 2s2 3p5
• 1s2 2s2 3d5
• 1s2 2s2 2p5
• 1s2 2p5

This shape is that of a/n:

• s orbital

• p orbital

• d orbital

• f orbital

How many electrons can the first energy level hold?

• 1
• 2
• 8
• 0

How many quantum numbers are needed to describe the energy state of an electron in an atom?

• 1
• 2
• 3
• 4

What is the name of the element whose electron configuration is 1s²2s²2p³?

• magnesium

• nitrogen

• carbon

• phosphorous

Using noble-gas notation, calcium is represented by [Ar]4s². How many electrons does calcium have?

• 18

• 20

• 22

• 24

What is the noble gas shorthand electron for Sulfur atom?

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

What is the charge of an atom that has lost one electron?

• -1
• -2
• +1
• +2

What is the charge of an atom that has gained one electron?

• -1
• -2
• +1
• +2