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Formative Test on the Structure of an Atom

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Which of the following is the subatomic particle that is outside the nucleus of an atom?

a)

Electron

b)

Neutron

c)

Proton

d)

Any of the 3 options is correct.

2.

Which 2 subatomic particles constitute the nucleus of an atom?

a)

Electron and neutron

b)

Electron and proton

c)

Proton and neutron

d)

Any of the 3 options is correct.

3.

"Neutron is the neutral subatomic particle of an atom." What does the word 'neutral' mean in this statement?

a)

Option 1: Neutron has a no charge.

b)

Option 2: Neutron has zero charge.

c)

Option 3: Neutron can either be positive or negative

d)

Any of the 3 options is correct.

4.

Which statement is TRUE about the given atomic model?

a)

The atom has equal number of protons, electrons, and neutrons.

b)

The atom is electrically neutral because of its equal number of protons and electrons.

c)

The atom has a stable nucleus due its equal protons and neutrons.

d)

The stable atom is carbon-12.

e)

All options are correct.

5.

Based on the given atomic model, which number below represents the mass of the atom?

a)

6

b)

12

c)

18

d)

24

6.

Which part of the atomic model is useful in finding the PERIOD of the atom in the Periodic Table?

a)

Atomic Number

b)

Main Energy Levels

c)

Mass Number

d)

Nucleus

7.

What would you do to verify the identity of the atom that is shown in the atomic model?

a)

Count the number of electrons. This is always the atomic number of the atom.

b)

Count the number of protons. This is always the atomic number of the atom.

c)

Get the sum of the electrons and the protons. This is always the atomic number of the atom.

d)

Get the sum of the protons and electrons. This is always the atomic number of the atom.

8.

Based on the given chemical symbol for copper (Cu), which number represents its atomic mass?

a)

29

b)

35

c)

63.55

d)

64

9.

Based on the given chemical symbol for copper (Cu), which number represents its atomic number?

a)

29

b)

35

c)

63.55

d)

64

10.

Based on the given chemical symbol for copper (Cu), which number represents its number of neutrons?

a)

29

b)

35

c)

63.55

d)

64

e)

Cannot be determined