Free Printable Bohr Model and Atomic Spectra

1.

Which one of these images is a bohr model?

a)

b)

2.

Electrons in the outermost shell of an atom are called _____ electrons

a)

valence

b)

core

3.

Other electrons in the atom are called what?

a)

valence

b)

core

4.

In a Bohr model, the electrons ______ the nucleus have the least energy.

a)

closest to

b)

farther from

5.

Which of the following shells is farthest from the nucleus in a Bohr model?

a)

η=1

b)

η=2

c)

η=3

6.

What is the maximum number of electrons that the η=2 shell of a Bohr model can hold?

a)

2

b)

8

c)

10

7.

Consider the Bohr Model in your Chemistry Reference Tables. This is the Bohr Model for which element?

a)

helium

b)

neon

c)

hydrogen

d)

carbon-12

e)

uranium

8.

What is the LOWEST possible energy level that an electron can occupy?

a)

Excited State

b)

Fundamental State

c)

Ground State

d)

Outermost State

9.

If the hydrogen atom emits red, blue-green, blue, and violet light, how many energy levels does it have in the visible region of the spectrum?

a)

3

b)

4

c)

5

d)

6

10.

How many electrons are located in the outermost orbit in the Bohr model of a boron atom?

a)

1

b)

2

c)

3

d)

4

11.

The figure shows different possible transitions of electrons as they move from higher energy states to lower energy states. Which transition will produce the spectrum line with the LOWEST wavelength in this element's atomic spectrum?

a)

E

b)

F

c)

B

d)

A

12.

Oxygen is perhaps the most important atom on Earth. Which of the following electronic transitions in the oxygen atom will result in light emission?

a)

$n=1\rightarrow n=2$

b)

$n=1\rightarrow n=3$

c)

$n=3\rightarrow n=2$

d)

$n=2\rightarrow n=3$

13.

Which has the longest wavelength?

a)

Orange

b)

Green

c)

Violet

d)

Yellow

14.

What is the frequency for a sodium lamp that has a wavelength of 598.3nm?

a)

$5.01\ x\ 10^{14}\ Hz$

b)

179.49 Hz

c)

$1.994\ x\ 10^{-15}\ Hz$

d)

$5.01\ x\ 10^{5\ }Hz$

15.

What is the wavelength of electromagnetic radiation that has a frequency of 5.56 MHz?

a)

539m

b)

53.9m

c)

.019m

d)

$5.36\ x\ 10^7m$

16.

Blue light has a wavelength of 400nm. What is the frequency of this radiation? What is the energy of this radiation?

a)

$\ 7.5\ x\ 10^{14}\ Hz\ and\ 7.5\ x\ 10^5\ J$

b)

$7.5\ x\ 10^5\ Hz\ and\ \ \ 1.13\ x\ 10^{48}\ J$

c)

$7.5\ x\ 10^{14\ }Hz\ and\ 4.97\ x\ 10^{-19}\ J$

d)

$120\ Hz\ and\ 2.65\ x\ 10^{-40}\ J$

17.

A visible light wave has a frequency of $7.5\ x\ 10^{14}\ Hz$

What is the wavelength, in nanometers, and what color is produced?

a)

400nm, violet

b)

200nm, ultraviolet

c)

400nm, blue

d)

600nm, red

Bohr Model and Atomic Spectra

Total questions: 17

Worksheet time: 9mins

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