Free Printable History of Atoms, Atomic Structure & Periodic Table

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Worksheets

History of Atoms, Atomic Structure & Periodic Table

Total questions: 58

Worksheet time: 37mins

Name

Class

Date

1.

Which of these grouping of elements could have the characteristic of luster (shiny)?

a)

Metal

b)

Nonmetal

c)

metalloids

d)

Both metals and metalloids

2.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

3.

What particles would you find in the nucleus of an atom?

a)

Protons only

b)

Protons and Neutrons

c)

Neutrons and Electrons

d)

Protons and Electrons

4.

Which particles contribute the most to the mass of an atom?

a)

Protons, Neutrons, Electrons

b)

Protons only

c)

Protons and Electrons

d)

Protons and Neutrons

5.

What is the number of protons that the element in this image contain?

a)

14

b)

7

c)

15

d)

18

6.

Protons and Electrons balance the charge of an atom.

a)

True

b)

False

7.

If an atom has 12 protons, which of the following must it also have to be considered a neutral atom?

a)

12 neutrons

b)

12 electrons

c)

12 protons

d)

24 protons and neutrons

8.

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

a)

20

b)

10

c)

5

d)

25

9.

An element with a mass number of 11 and an atomic number of 5 has how many neutrons?

a)

11

b)

5

c)

6

d)

16

10.

The particles you can find by knowing the atomic number.

a)

neutrons

b)

protons and electrons

c)

protons and neutrons

d)

atomic mass

11.

The mass of one proton is MUCH greater than the mass of one...

a)

neutron

b)

electron

12.

Which letter represents a proton?

a)

A

b)

B

c)

C

d)

D

13.

Which letter represents a neutron?

a)

A

b)

B

c)

C

d)

D

14.

Which letter represents an electron?

a)

A

b)

B

c)

C

d)

D

15.

What is an atom mostly made up of?

a)

protons

b)

electrons

c)

empty space

d)

neutrons

16.

How many protons does oxygen have?

a)

8

b)

16

c)

15.999

d)

24

17.

How many neutrons does oxygen have?

a)

8

b)

7.999

c)

15.999

d)

24

18.

How many electrons does a neutral atom of oxygen have?

a)

8

b)

15.999

c)

24

d)

16

19.

John Dalton's model of the atom was

a)

The first modern theory of the atom

b)

The 1st theory of the atom, 400 BCE

c)

Showed the atom is mostly empty space

d)

Identified the protons in the nucleus

20.

Democritus' model of the atom was

a)

The first modern theory of the atom

b)

The 1st theory of the atom, 400 BCE

c)

Showed the atom is mostly empty space

d)

Identified the protons in the nucleus

21.

Rutherfords' model of the atom

a)

The first modern theory of the atom

b)

The 1st theory of the atom, 400 BCE

c)

Showed the atom is mostly empty space

d)

Identified the protons in the nucleus

22.

Bohr's and Heisenbergs' model of the atom

a)

The first modern theory of the atom

b)

The 1st theory of the atom, 400 BCE

c)

Showed the atom is mostly empty space

d)

Identified the protons in the nucleus

23.

Chadwicks' model of the atom

a)

The first modern theory of the atom

b)

The 1st theory of the atom, 400 BCE

c)

Showed the atom is mostly empty space

d)

Accounted for the extra Atomic Mass with the Neutron

24.

These particles orbit around the nucleus of an atom. What are they called?

a)

electrons

b)

protons

c)

neutrons

d)

photons

25.

From the diagram, which particles are indicated with the arrow?

a)

electrons and protons

b)

protons and neutrons

c)

electrons and neutrons

d)

photons and nucleons

26.

Everything is made up of little tiny things called _____

a)

compounds

b)

molecules

c)

atoms

d)

solids

27.

In the center of the atom is something called _____

a)

the kernel

b)

the cell

c)

the nucleus

d)

the focal point

28.

What are the names of the particles in the nucleus?

a)

protons and neutrons

b)

protons and electrons

c)

photons and neutrons

d)

nucleons and protons

29.

Near the outside of an atom, you'd find _____

a)

electrons

b)

protons

c)

neutrons

d)

photons

30.

What is the atomic mass of Neon?

a)

10

b)

20.18

c)

10.18

d)

12

31.

How many protons are in Beryllium?

a)

4

b)

9

c)

5

d)

2

32.

What is the atomic mass of Copper?

a)

63

b)

29

c)

34

d)

92

33.

What is the atomic mass of Gold?

a)

79

b)

196.9665

c)

117

d)

275

34.

What is the atomic weight of Helium

a)

4

b)

2

c)

6

d)

1

35.

What is the atomic mass of Hydrogen?

a)

1

b)

2

c)

3

d)

0

36.

What is the atomic weight of Iron?

a)

26

b)

55.845

c)

56

d)

30

37.

What number is circled?

a)

Number of Neutrons

b)

Number of Protons

c)

Atomic Mass

d)

Number of Electrons

38.

What is the atomic number of this nucleus?

a)

1

b)

3

c)

4

d)

7

39.

What does the nucleus of an atom contain?

a)

Electrons and neutrons

b)

Protons and neutrons

c)

Neutrinos and positrons

d)

DNA and RN

40.

The positive particles of an atom are _________.

a)

positrons

b)

electrons

c)

protons

d)

neutrons

41.

Which of these grouping of elements could have the characteristic of brittle?

a)

Metal

b)

Nonmetal

42.

Which of the following is a good conductor of heat?

a)

Metal

b)

Nonmetal

c)

Metalloid

43.

Which of these is a property of metals?

a)

It's malleable

b)

It can't conduct electricity

c)

They are used in food

d)

It's very brittle

44.

All of the following would classify an element as a metal except?

a)

Dull

b)

Luster

c)

Malleable

d)

Hard

45.

Some characteristics of a metal are that it is malleable and ductile.

a)

TRUE

b)

FALSE

46.

Which of the following properties refers to the ability of metals to be drawn into wires?

a)

A. malleability

b)

B. compressibility

c)

C. ductility

d)

D. luster

47.

What element in Group 1 is not a metal but a nonmetal?

a)

Helium

b)

Lithium

c)

Hydrogen

d)

Oxygen

48.

What does malleable mean?

a)

able to bend

b)

will break easily

c)

can be used for wire

d)

is shiny

49.

How would this element be classified?

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Metamorphic

50.

A pure substance that cannot be broken down into anything simpler is a/an-

a)

atom

b)

element

c)

cell

d)

compound

51.

Neutrons are found in the...

a)

Nucleus

b)

Electron Cloud

c)

Electrons

d)

Protons

52.

Electrons have a ___________ charge.

a)

Positive

b)

Negative

c)

Neutral

53.

Which particle has a positive charge?

a)

electron

b)

orbital

c)

proton

d)

neutron

54.

In this picture, the Electrons are found in which color?

a)

Blue

b)

Red

c)

Green

55.

How many neutrons does this atom have?

a)

4

b)

5

c)

6

d)

7

56.

The atoms along the staircase are called

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

57.

Isotopes have

a)

The same amount of protons

b)

Different protons and electrons

c)

Same number of neutrons

d)

Different protons and neutrons

58.

Ions are

a)

Only Positively charged atoms

b)

Only Negatively charged atoms

c)

Have no charge

d)

May have either a positive or negative charges

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