First semester final review #2: EMS and electrons

The lowest energy state of an atom is its

• highest occupied energy level

• ground state

• electron configuration

• principle quantum number

When an atom in an excited state gives off a photon of radiation, the energy of the photon is equal to the

• total energy of the atom's excited state and it ground state

• energy of the atom's excited state

• difference in energy between the atoms excited state and its ground state

• energy of the atom's ground state

Tags

NGSS.HS-PS4-3

Colored light (a photon) is emitted from a gaseous atom when an electron moves to its ground state from a(n)

• less energetic state

• n=0 state

• inner shell

• excited state

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NGSS.HS-PS4-3

Which color in the visible spectrum has the highest energy?

• red

• purple

• green

• blue

Whenever an excited hydrogen atom returns from an excited state to its ground state, it

• absorbs a photon of radiation

• absorbs specific frequencies of light

• gives off a photon of radiation

• gives off radiation over a range of frequencies

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NGSS.HS-PS4-3

Calcium will make a +2 ion because it will

• lose one electron

• gain one electron

• lose two electrons

• gain two electrons

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NGSS.HS-PS1-1

NGSS.HS-PS1-2

In an atom, what is the relationship between the charges of an electron and a proton

• They are equal but opposite

• They are identical

• The proton charge is larger

• The electron charge is larger

The charge on an ion is

• either positive or negative

• always positive

• zero

• always negative

Which diagram shows a wave with the highest frequency

• 
• 
• 
• 

Tags

NGSS.HS-PS4-1

Which label identifies the wavelength of the wave shown

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS4-1