Electron Configuration, Basics

In Hydrogen, which is/are true?

• 1s has less energy than 2s

• 2p has more energy than 2s

• There are 3 p orbitals in the 2nd energy level

• There is 1 electron

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which statement(s) is/are true?

• The 1s sublevel has less energy in hydrogen than helium

• The 2p sublevel in carbon has 3 degenerate orbitals

• In hydrogen, the 3s and 3d sublevels have the same energy

• Sublevels are not degenerate in any atom.

Tags

NGSS.HS-PS1-2

What is this?

• Electron configuration

• Orbital Diagram

• Arrow diagram

• Aufbau diagram

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many electrons are in this atom?

• 6

• 12

• 4

• Impossible to determine

Tags

NGSS.HS-PS1-1

How many sublevels are in this atom?

• 4

• 6

• 12

• Impossible to determine

How many orbitals are in this atom?

• 4

• 6

• 12

• Impossible to determine

How are electrons indicated in this diagram?

• a single box

• a set of boxes

• An arrow

• There are no electrons in this atom

Tags

NGSS.HS-PS1-1

What is this?

• Electron configuration

• Orbital Diagram

• Arrow diagram

• Aufbau diagram

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How are electrons indicated in this diagram?

• Coefficients

• letters

• superscripts

• There are no electrons in this atom

Tags

NGSS.HS-PS1-1

What do the coefficients represent in this diagram?

• electrons

• Sublevels

• Orbitals

• energy levels

Tags

NGSS.HS-PS1-1