WorksheetsElectrons
Total questions: 15
Worksheet time: 9mins
Which EM waves have the longest wavelength?
radio
x-rays
ultraviolet
gamma rays
Which EM waves are have the lowest frequency?
radio
none
infrared
x-rays
Which color waves have the shortest wavelength?
red
yellow
green
violet
When an atom absorbs energy, electrons .....
moves up an energy level
goes down an energy level
are removed from the atom
When electrons move down an energy level, the atom ......
releases equal energy as a photon
splits
bonds to another
The lines in the emission spectrum for hydrogen are formed from ___.
energy given off when the electron moves from higher energy levels to lower energy levels
electrons given off as hydrogen burns
protons given off when protons move from higher energy levels to lower energy levels
electrons given off as hydrogen cools
Which color has the highest frequency?
green
blue
red
yellow
Each element on the periodic table can be identified by its
classification as a solid, liquid or gas.
location on the table.
ability to react to form compounds.
unique spectral "fingerprint."
In which state does an electron have the least amount of energy?
Excited state
Ground state
Orbital
Bohr model
When an electron gains energy and moves to a higher energy level, it is called a(n) ______ electron
ground state
valence
excited
octect
