Electrons and Light

Consider the light illustrated in model 1. Which color represents the longest wavelength? (#6a)

• The reds
• The violets
• The oranges
• The blues

Tags

NGSS.HS-PS4-1

Consider the light illustrated in model 1. Which color represents the shortest wavelength? (#6b)

• The reds
• The violets
• The oranges
• The blues

Tags

NGSS.HS-PS4-1

Which of the following sentences describes the relationship between wavelength and energy of light? (#6c)

• As wavelength gets shorter the energy of light increases
• As wavelength gets shorter the energy of light decreases

Tags

NGSS.HS-PS4-1

Electrons and protons ______ each other (#14)

• attract
• repel

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

As an electron gets closer to the nucleus the _______ to the nucleus gets _____. (#15)

• attraction; weaker
• attraction; stronger
• repulsion; weaker
• repulsion; stronger

For an electron to move from an energy level close to the nucleus to an energy level far from the nucleus it would need to ____ energy.  (#16)

• gain
• lose

Tags

NGSS.HS-PS1-2

For an electron to move from an energy level far from the nucleus to an energy level close to the nucleus it would need to ____ energy.  (#17)

• gain
• lose

Consider the transition of n=5 to n=2 on the Bohr model of the hydrogen atom. This electron transition ____ energy. (#19a)

• releases
• absorbs

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Consider the transition of n=5 to n=2 on the Bohr model of the hydrogen atom. This electron moves from a ____ energy state to a ____ energy state. (#19b)

• lower; lower
• higher; higher
• higher; lower
• lower; higher

Consider the transition of n=5 to n=2 on the Bohr model of the hydrogen atom. This transition gives of what color light?

• violet
• blue-violet
• blue-green
• red

Tags

NGSS.HS-PS4-3