Chapter 4 Chemistry Test review

what did the rutherford model of the atom not explain?

• where atoms negatively charged electrons are located in the space surrounding the positively charged nucleus

• where atoms positively charged electrons are located in the space surrounding the negativity charged nucleus

• where atoms with no charge are located in correlation to the positively charged nucleus

• none of these

what did studies reveal a relationship between in the early 20th century

• light and an atom's neutrons

• light and an atom's electrons

• light and an atom's protons

• all of these were revealed

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what is electromagnetic radiation

• a form of radiation that exhibits wavelike behaviors as it travels through space

• a form of energy that exhibits wavelike behaviors as it travels through space

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define the electromagnetic spectrum

• all forms of electromagnetic radiation

• some forms of electromagnetic radiation

• only 2 forms of electromagnetic radiation

• only the visible forms of electromagnetic radiation

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which of these is the electromagnetic spectrum in order from the lowest amount of energy to the highest amount of energy

• gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, radio waves
• radio waves, microwaves, visible light, infrared, ultraviolet, X-rays, gamma rays
• gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves, radio waves
• radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays

define wavelength

• none of these

• distance between resting point and the trough

• distance between resting point and the crest

• distance between corresponding points on adjacent waves

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define frequency

• The number of occurrences of a repeating event per unit of time.
• The amount of data that can be transmitted per second.
• The distance between two points.
• The measure of the loudness of a sound.

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as wavelength decreases, what happens to frequency

• frequency increases
• frequency becomes zero
• frequency remains the same
• frequency decreases

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equation for speed of light?

• c = fλ
• c = mv
• c = E/m
• c = λν

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define photoelectric effect

• The photoelectric effect is the emission of electrons from a material when light of a certain frequency or higher is shone upon it.
• The photoelectric effect is the emission of protons from a material when light of a certain frequency or higher is shone upon it.
• The photoelectric effect is the emission of electrons from a material when light of a certain wavelength or lower is shone upon it.
• The photoelectric effect is the emission of photons from a material when light of a certain frequency or lower is shone upon it.

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