1. The Earth\'s atmosphere shields us from most kinds of electromagnetic radiati

Question

1. The Earth's atmosphere shields us from most kinds of electromagnetic radiation. The major exceptions are ________.

a. visible light and radio waves

b. only visible light frequencies

c. x-rays and u-v radiation

d. x-rays and gamma rays

Part B.) The energy of a photon is

a. proportional to the wavelength and inversely proportional to the frequency.

b. proportional to the wavelength and proportional to the frequency.

c. inversely proportional to the wavelength and inversely proportional to the frequency.

d. inversely proportional to the wavelength and proportional to the frequency.

Part C.) The lowest possible energy state of an atom is called the _________ state. An energy level of an atom above this lowest-energy state is called a(n) _________ state. Place one word in each blank.

Part D.) Arrange the seven wavelength ranges of the complete electromagnetic spectrum in correct order by decreasing wavelength: ________, _________, _________, _________, _________, _________, and _________ (the wavelength range with the longest wavelengths goes first).

a. visible light and radio waves

b. only visible light frequencies

c. x-rays and u-v radiation

d. x-rays and gamma rays

Explanation / Answer

1)  The Earth's atmosphere shields us from most kinds of electromagnetic radiation. The major exceptions are a. visible light and radio waves

part B) The energy of a photon is

d. inversely proportional to the wavelength and proportional to the frequency.

part C) The lowest possible energy state of an atom is called the ground state. An energy level of an atom above this lowest-energy state is called a(n) excited state

part D) radio waves ,  microwaves, infrared ,  visible light ,  ultraviolet radiation, x-rays, and gamma rays

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