Electrons in the quantum atom HW4

What is the total number of energy levels used by an atom of aluminum
(Al, atomic #13) in the ground state?

• 3
• 7
• 13
• 0

Tags

NGSS.HS-PS1-1

A line spectrum is produced when an electron moves from one energy level

• into the nucleus.
• to another position in the same sublevel.
• to a higher energy level.
• to a lower energy level.

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NGSS.HS-PS4-1

If an electron moves from n=2 to n=4 ...

• it absorbs energy
• it releases energy

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NGSS.HS-PS1-4

If an electron moves from n=5 to n=2 ...

• it absorbs energy
• it releases energy

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NGSS.HS-PS1-2

Based on the picture, choose the best description of how wavelength and frequency are related

• As wavelength increases, frequency increases
• As frequency increases, wavelength remains the same
• As frequency increases, wavelength decreases
• frequency and wavelength mean the same thing

Tags

NGSS.HS-PS4-1

Which kind of wave has the greatest frequency?

• gamma rays
• infrared
• ultraviolet
• microwaves

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NGSS.HS-PS4-1

The higher the frequency the ______ the energy. 

• higher
• lower
• neither, stays the same

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NGSS.HS-PS4-1

What is the name of the element whose electron configuration is 1s²2s²2p³?

• magnesium

• nitrogen

• carbon

• phosphorous

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NGSS.HS-PS1-1

What is the noble gas shorthand electron for Sulfur atom?

• [Ar] 3p⁴
• [He] 3s²3p⁴
• [Ne] 3s²3p⁴
• [Na] 3s²3p⁴
  

Tags

NGSS.HS-PS1-1

The element with electron configuration 1s²2s²2p⁶3s²3p²

• Si

• Mg

• S

• C

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2