Bohr Model

Line emission spectrum shown below happens when

• Electron transition from lower to higher energy level.
• Electron transition from higher to lower energy level.
• Electron exist in fixed energy states
• Electron transition between different energy levels.

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Emission of light from an atom occurs when an electron

• drops from a higher to a lower energy level.
•    jumps from a lower to a higher energy level.   
•    moves within its atomic orbital.
• falls into the nucleus.

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Why are line emission spectra of elements called "atomic fingerprints"?

• They are all the same
• They are all unique
• They are all similar
• They all contain colored light

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If an electron moves from n=4 to n=2 it ____

• absorbs energy

• releases energy

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If short wavelength has more ENERGY than long wavelength, which color Lightsaber is the most dangerous, or powerful?

• Red

• Orange

• Blue

• Green

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Which wave in the diagram has the longest wavelength?

• 1

• 2

• 3

• 4

Which term describes a packet, or certain amount, of energy?

• Ground state

• Orbital

• Quantum

• Excited State

When atoms release energy, it is in the form of _____________.

• space

• light

• speed

• energy

Which of the following correctly explains why elements emit only specific bands of light and not the entire electromagnetic spectrum?

• Changes in energy for electrons always happens in a continuous stream, not specific amounts

• Changes in energy for electrons always happens in specific amounts, not a continuous stream

• Changes in energy for electrons always happens in small amounts and it would require a large energy change to get a full spectrum

• Changes in energy for electrons do not happen often enough to emit the full electromagnetic spectrum

Which of the following type of electromagnetic radiation has the most energy

• infrared
• ultraviolet
• microwaves
• radiowaves

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