Flame test lesson

Flame test of metallic elements

Multiple Choice

Flame tests can be use to distinguish (tell apart) between some

• non-metallic elements

• metallic elements

• semi-metallic elements

• noble gases

Electrons move from ground state to the excited state and
back again.

Diagramatic representation of

the flame test.

Multiple Choice

L3) Excited electrons give off energy in the form of a photon (visible light) when they

• jump to the 'excited' state

• absorb heat energy

• jump back down into the ground state

Flame colour related to the emission spectrum for each

element.

Multiple Choice

L2) The flame color of each element is determined

• by the most frequent wavelength that it emits.

• by the average of all the wavelengths that it emits.

• by the colour of the excited state electrons.

• by the difference of the colour of the excited and ground state electrons.

Multiple Choice

L1) If electrons gain energy they 

• move up one or more shells

• more down one or more shells

Multiple Choice

L2) Flame tests are most useful for

• blood testing

• watching fireworks

• identification of elements

• none of the above

Multiple Choice

When an atom _______________ _____________, its electrons can use this energy to move to a higher energy level.

• releases energy

• absorbs energy

• emits radiation

• gets rid

Multiple Choice

An unknown compound is used in the flame test. It glows blue-green when passed through the flame. What is a likely option for this compound’s identity?

• Calcium

• Copper

• Strontium

• Potassium