Atomic Spectra

There is an emission spectrum and absoption spectrum shown here. What is the bottom spectrum?

• an emission spectrum
• an absoption spectrum
• neither
• both 

Light is emitted when electrons ...

• jump from a higher energy level back down to their ground state

• jump from a lower energy level up to a higher level

• either of these

• none of these

Consider the spectrum for the hydrogen atom. in which situation will light be produced?

• electrons absorb energy as they move to an excited state

• electrons release energy as they move to an excited state

• electrons absorb energy as they return to the ground state

• electrons release energy as they return to the ground state

An atom absorbing energy will have its electron/s

• moving up energy levels

• going down energy levels

• stay in the same energy levels

which element is contained in the unknown element shown?

• Hydrogen

• Mercury

• Neon

• Sodium

Which of the following elements make up the unknown sample?

• A and B
• B and C
• C and D
• B and C

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Sodium

The unknown emissions spectra belongs to the element

• Hydrogen

• Mercury

• Neon

• Helium

• helium and hydrogen
• helium and calcium
• hydrogen and calcium
• hydrogen and helium

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