Free Printable ELD intro to atoms review

Worksheets

ELD intro to atoms review

Total questions: 50

Worksheet time: 39mins

Name

Class

Date

What is the smallest part of matter?

neutral

mass

atom

nucleus

What does the nucleus of an atom contain?

Electrons and neutrons

Protons and neutrons

Neutrinos and positrons

DNA and RN

What are the 3 subatomic particles that make-up the atom?

protons, neutrons, and isotopes

neutrons, isotopes, and electrons

positives, negatives, and electrons

protons, neutrons, and electrons

Match the particle on the top row with its charge on the bottom row.

neutrons

neutral (0)

protons

positive (+)

electrons

negative (-)

Which subatomic particle is "the boss" and determines the type of atom?

electrons

protons

nucleus

neutrons

When two particles have the same charge, do they attract or repel?

attract

repel

Which sub atomic particle is called an electron?

Which subatomic particle is called a neutron?

Which subatomic particle is called a proton?

10.

Label each subatomic particle with its charge (positive, negative, or neutral).

a)positive

b)neutral

c)negative

11.

Do opposite (different) charges attract or repel?

repel

attract

12.

(a) are (b) and they are found in the (c) .

Choose from the below words

Electrons

negative

electron cloud

protons

neutrons

13.

The (a) is in the center of the atom and includes (b) and (c) .

Choose from the below words

nucleus

protons

neutrons

electrons

electron cloud

14.

A proton has a ___________ charge.

positive

negative

neutral

15.

The (a) is the boss of the atom because the (b) of protons tells us what kind of atom it is.

Choose from the below words

proton

number

electon

weight

cloud

16.

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

Protons and electrons

Neutrons and electrons

Protons and neutrons

Electrons and negatrons

17.

Match the following:

positive particle in the nucleus

proton

neutral particles in the nucleus with protons

neutron

negative particle outside fo the nucleus in the electron cloud

electron

18.

How many protons are in an atom of carbon?

12.01

19.

What is the atomic mass of "F"?

19.8894

18.9984

20.

Which number here is the atomic number?

10.811

21.

What does 12.011 represent?

atomic mass

atomic number

element name

chemical symbol

22.

What does the 6 represent?

atomic mass

atomic number

element name

chemical symbol

23.

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

24.

The atomic number of this pictured element is

58.6934

Nickel

25.

What is the atomic mass of Neon?

10.18

20.18

26.

Elements

are made of two or more types of atoms chemically bonded together

are made of one type of atom

are made of two or more types of molecules combined in the same space

are always individual atoms

27.

What type of matter contains two or more different elements?

Neutron

Atom

Electron

Compound

28.

What type of matter contains two or more of the same or different atoms?

Atom

Molecule

Proton

Neutron

29.

Pizza is an example of a ____________.

Pure Substance

Mixture

30.

Kool-Aid is an example of a ___________

mixture

element

compound

31.

Water is a

element

compound

mixture

32.

This diagram represents a _____.

pure substance that is a compound

mixture of elements

pure substance that is an element

mixture of compounds

33.

This diagram represents a _____.

pure substance that is a compound

mixture of elements

pure substance that is an element

mixture of compounds

34.

Saltwater is

Mixture

Compound

35.

This is a

Pure Substance

Molecule

Compound

Mixture

36.