Flame Test Pre-Lab

Which has the longest wavelength?

• Radio Waves

• Red Visible Light

• Infrared Light

• Gamma Rays

How many nanometers are in a meter?

• A million

• A billion

• A trillion

• A sextillion

When light that is 200 nm comes into your eye, what do you see?

• Nothing

• Red light

• Green Light

• Violet Light

When light that is 500 nm comes into your eye, what do you see?

• Nothing

• Red light

• Green Light

• Violet Light

This atom is in the

• Ground state

• Excited State

Tags

NGSS.HS-PS1-2

This atom is in the

• Ground state

• Excited State

Tags

NGSS.HS-PS1-2

How do electrons become excited?

• Emitting light/energy

• Absorbing light/energy

• Going down an orbital/energy level

• Going up an orbital/energy level

What is the state when electrons move to a higher energy level upon absorption of energy?

• active

• inactive

• excited

• ground

Tags

NGSS.HS-PS1-2

What particles in the heated compounds are responsible for the production of the colored light?

• proton

• neutron

• electron

• proton and neutron

What form of energy is emitted when an excited electron returns to the ground state?

• Photon (light)

• Heat

• Kinetic

• Potential

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3