Line Spectrums Flashcards
1
Q
What colour is a sodium flame
A
Yellow or orange
2
Q
What colour is a potassium flame
A
Lilac
3
Q
What do the distinctive colours in the flame help to do
A
Help chemists identify a metal in a compound
4
Q
What happens when an electron is heated
A
The atoms release energy as light
5
Q
How can the wavelengths that are emitted be recorded
A
As a line spectrum
6
Q
Why do different elements emit different wavelengths of light
A
Because each element has a different electron arrangement
7
Q
What is the practical technique used to produce
A
Line spectrums called spectroscopy
8
Q
Name 3 elements discovered due to the line spectrum
A
Caesium , rubidium and helium
9
Q
What colour is a lithium flame
A
Red
