Free Printable Atomic Structure & Spectrum

1.

Using the information about Potassium (K), how many neutrons are in this atom?

a)

19

b)

20

c)

30

d)

39

2.

Using the periodic table chart, which element has four times as many protons in its nucleus than are found in Neon?

a)

Si

b)

Zr

c)

Ca

d)

Hg

3.

Classify the type of element represented. See image.

a)

metal

b)

nonmetal

c)

metalloid

4.

How many valence electrons does the atom have? See image.

a)

1

b)

3

c)

5

d)

7

5.

Choose the correct electron configuration for potassium, (K= 19 atomic number)

a)

1s¹ 2s² 2p⁶3s² 3p⁶ 4s¹

b)

1s² 2s² 2p⁶3s² 3p⁶ 4s¹

c)

1s² 2s² 2p⁵3s² 3p⁶ 4s¹

d)

1s² 2s² 2p⁶3s² 3p⁶ 4s²

6.

What force holds the nucleus of the atom together?

a)

Gravitational force

b)

Weak nuclear force

c)

Electromagnetic force

d)

Strong nuclear force

7.

Which Bohr model below is correct for Potassium?

a)

b)

c)

d)

8.

An elements in Period 2 are considered in order from lithium to fluorine, there is an increase in the:

a)

atomic radius (size)

b)

electronegativity

c)

number of electrons shells

d)

number of electrons in the first shell

9.

What is the element found in Group 17 Period 4?

a)

F - Fluorine

b)

Cl - Chlorine

c)

Br - Bromine

d)

I - Iodine

e)

At - Astatine

10.

What is the correct Lewis Dot Structure for the Sulfur (S)?

a)

b)

c)

d)

11.

All stars are composed of a mixture of elements. When these elements are heated they emit specific amounts of electromagnetic radiation, known as an emission spectrum. Each element emits a unique, identifiable, spectrum.

Using the Bright-line emission spectrum chart below, identify the elements present in this modeled star (found in the line labeled “mixture”).

a)

Lithium and cadmium are in the mixture. Strontium is not in the mixture.

b)

Lithium and strontium are in the mixture. Cadmium is not in the mixture

c)

Cadmium and strontium are in the mixture. Lithium is not in the mixture

d)

All of the shown elements are present in the mixture.

12.

Astronomers have used the absorption spectrum from stars to determine what elements are produced at the different stages of a star’s life cycle. Match the stage of a star’s life cycle with the element it is MOST likely to produce in NEBULA

a)

Iron

b)

Helium

c)

Uranium

13.

Astronomers have used the absorption spectrum from stars to determine what elements are produced at the different stages of a star’s life cycle. Match the stage of a star’s life cycle with the element it is MOST likely to produce in RED GIANT.

a)

Iron

b)

Helium

c)

Uranium

14.

Astronomers have used the absorption spectrum from stars to determine what elements are produced at the different stages of a star’s life cycle. Match the stage of a star’s life cycle with the element it is MOST likely to produce in SUPER NOVA.

a)

Iron

b)

Helium

c)

Uranium

15.

Which of the following colors of visible light has the longest wavelength?

a)

Blue

b)

Yellow

c)

Violet

d)

Red

16.

Examine the following spectrum of hydrogen taken from source that is not moving. Identify the type of shift visible in the following spectrums. Based on your understanding of red-shifts and blue-shifts state how the source is moving in relation to the observer. Which spectrum that is moving away?

a)

b)

17.

Examine the following spectrum of hydrogen taken from source that is not moving. Identify the type of shift visible in the following spectrums. Based on your understanding of red-shifts and blue-shifts state how the source is moving in relation to the observer. Which hydrogen spectrum that is moving toward?

a)

b)

18.

Based on spectroscopy studies, what are the two most common elements found in the universe?

a)

Carbon and Oxygen

b)

Iron and Silicon

c)

Sulfur and Nitrogen

d)

Helium and Hydrogen

19.

According to the Big Bang Theory, our universe must have been (smaller or larger)

(a)

20.

According to the Big Bang Theory, our universe must have been (Colder or Hotter)

(a)

Atomic Structure & Spectrum

Total questions: 20

Worksheet time: 11mins

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