Ch. 9: Electrons in Atoms and the Periodic Table

Question 1

T/F: Light travels through space at a speed of 3.00 x 10⁸ m/s.

Answer 1

True

Question 2

T/F: A red shirt appears red to our eyes because the shirts absorbs the red wavelengths of visible light.

Answer 2

False

Question 3

T/F: Blue light travels at a faster speed than red light.

Answer 3

False

Question 4

T/F: A photon of red light contains the same amount of energy as a photon of blue light.

Answer 4

False

Question 5

T/F: The shorter the wavelength of light, the more energy it has.

Answer 5

True

Question 6

T/F: Wavelength of visible light determines color.

Answer 6

True

Question 7

T/F: The most energetic photons are gamma rays.

Answer 7

True

Question 8

T/F: Visible light makes up the largest portion of the electromagnetic spectrum.

Answer 8

False

Question 9

T/F: Photons of ultraviolet radiation contain more energy than do photons of violet visible light.

Answer 9

True

Question 10

T/F: X-rays damage biological molecules.

Answer 10

True

Question 11

T/F: Ultraviolet light produces suntans and sunburns.

Answer 11

True

Question 12

T/F: In order for a substance to be heated in a microwave, it must contain water.

Answer 12

True

Question 13

T/F: The great success of the Bohr model of the atom is that it predicted the emission spectrum lines of multi-electronic elements like helium.

Answer 13

False

Question 14

T/F: Each element produces its own unique and distinctive emission spectrum.

Answer 14

True

Question 15

T/F: The energy of an electron orbit is quantized.

Answer 15

True

Question 16

T/F: The energy of each Bohr orbit increases with increasing value of “n,” but levels become more closely spaced as “n” increases.

Answer 16

False

Question 17

T/F: Electrons behave like particles and we can describe their exact paths.

Answer 17

False

Question 18

T/F: An orbital is a probability map showing exactly where an electron can be found in an atom.

Answer 18

False

Question 19

T/F: The higher the principal quantum number, the lower the orbital energy.

Answer 19

False

Question 20

T/F: The possible values for the principal quantum numbers are: n = 0, 1, 2, 3, 4.

Answer 20

False

Question 21

T/F: The subshells of the orbital are represented by the possible letters: s, p, d, or f.

Answer 21

True

Question 22

T/F: A principal shell with a value of n = 3 would contain s, p, d, and f orbitals.

Answer 22

False

Question 23

T/F: The subshells s, p, d, and f all have the same energy as long as they are in the same principal shell.

Answer 23

False

Question 24

T/F: The ground state is when an electron in an atom is excited into the lowest possible vacant orbital.

Answer 24

True

Question 25

T/F: Transition metal elements always contain at least one “d” block electron.

Answer 25

True

Question 26

T/F: The Pauli exclusion principle states that orbitals may hold no more than two electrons of identical spins.

Answer 26

False

Question 27

T/F: The elements will lose or gain electrons as needed to have an electron configuration that matches a noble gas.

Answer 27

True