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WorksheetsAtomic Line Spectra
Total questions: 30
Worksheet time: 22mins
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."
What subatomic particle is responsible for the spectral lines seen in emission spectra diagrams?
electrons
protons
neutrons
In order to go from ground state to an excited state, an electron must
emit energy
absorb energy
wiggle
When an electron returns to ground state from an excited state, the atom will
emit energy in the form of light
absorb energy
spin, spin, spin
wiggle
If an electron moves from n=4 to n=2 it ____
absorbs energy, often in the form of light.
releases energy, often in the form of light.
In which state does an electron have the least amount of energy?
Excited state
Ground state
Orbital
Bohr model
Electronstransition from lower to higher energy levels.
Electron transition from higher to lower energy levels.
Electrons exist in fixed energy states
Electrons transition between different energy levels.
Which element(s) is/are found in the star's spectra below?
Hydrogen only
Hydrogen & Helium
Calcium only
Hydrogen & Calcium
The unknown emissions spectra belongs to the element
Hydrogen
Mercury
Neon
Sodium
What element is represented in this Bohr Model?
Carbon
Hydrogen
Aluminum
Lithium
Which drawing represents the process by which an emission line is formed? [Emission means that energy is being "emitted" or released by the atom.]
A
B
C
D
Spectroscopy can be used to study
the atmosphere of Mars.
the age of stars.
spectroscopes.
the Moon.
Spectroscopy can also be used to study
galaxies.
the surface of Mercury.
stellar composition.
UFO's.
A ___ can be used in place of a prism in a spectroscope & is inexpensive.
plastic prism
diffraction grating
CCD
lens
What evidence did you observe that proves that elements give off their own unique color spectrum?
All of the gas tubes produced a full spectrum. (A rainbow.)
When we looked at white light through a prism, we saw the rainbow.
Each gas tube gave off its own unique color and color spectrum when we looked at the light through the spectroscope. None of them were the exact same.
Each gas tube gave off the same color and color spectrum when we looked at the light through a spectroscope.
What part of the atom gains energy from the flame and then loses it in the form of light?
Proton
Neutron
Nucleus
Electrons
Subatomic particles with a negative charge
Electrons
Neutrons
Protons
Quarks
True or False: The ground state is the highest energy state of an atom.
True
False
The unknown emissions spectra belongs to the element
Hydrogen
Mercury
Neon
Sodium
What did Bohr's atomic theory model look like?
A ring with gold foil in the middle.
Electrons orbiting the nucleus like the planets around the sun.
A cloud of electrons floating around the nucleus.
A scoop of chocolate chip ice cream. It had electrons scattered within a ball of positive charge.
Electrons have a discrete (fixed) amount of energy when they transition from one orbital to another.
True
False
