Light Emission & Flame Test

A particle of light is called a...

• Photoelectron

• Photon

• Proton

• Electron

Tags

NGSS.HS-PS4-3

What is the reaction involved if the electron moves from position 1 to 2?

• Light will be emitted

• Light will be absorbed

• The electron will become less excited

• The electron will decrease a quantum

Tags

NGSS.HS-PS1-2

For an electron to change from ground state to an excited stated it must...

• Absorb energy
• Release energy

Why are line emission spectrums useful?

• they allow us to identify elements
• they tell us how many protons there are in a nucleus
• they help us predict the chemical behavior of an element
• they can be used as weapons to kill poisonous pandas

Tags

NGSS.HS-PS4-3

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Sodium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Helium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS4-3

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Helium

Tags

NGSS.HS-PS1-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

What causes an atom to ABSORB light?

• photons take in energy and jump to a higher energy level

• electrons take in energy and jump to a higher energy level

• electrons release energy when falling to a lower energy level

• photons release energy when falling to a lower energy level

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Which electron is most likely ABSORBING violet light?

• A

• B

• C

• D

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

What best describes what electron C is doing?

• absorbing red light

• emitting red light

• emtting violet light

• absorbing violet light

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4