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Atomic Structure

Total questions: 37

Worksheet time: 21mins

Name
Class
Date
1.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

2.

The subatomic particles found on the outermost shell & responsible for the atom's reactivity

a)

neutrons

b)

valence electrons

c)

isotopes

d)

ions

3.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
4.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
5.
Atoms of the same element with a different number of neutrons
a)
Ion
b)
Gluons
c)
Isotope
d)
Quarks
6.
A charged atom
a)
Ion
b)
Isotope
c)
Electron Cloud
d)
Quark
7.

The smallest particle of an element that shows all the properties of that element.

a)

Subatomic Particles

b)

Atom

c)

Molecule

d)

Compound

8.
Where electrons are likely to be found as they travel around the nucleus
a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
9.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
10.
Arrangement of elements organized by atomic number
a)
Electron Cloud 
b)
Periodic Table 
c)
Electron Configuration
d)
None of these
11.
Calculation used to find the number of neutrons in an atom
a)
Atomic Mass - Atomic Number
b)
Atomic Number - Atomic Mass
c)
Atomic Mass - Electrons
d)
none of these
12.
Subatomic particle with a charge of -1
a)
proton
b)
electron
c)
neutron
d)
quark
13.
Most of the volume an atom is made of this
a)
the nucleus
b)
the protons
c)
the neutrons
d)
empty space
14.

What is the atomic number?

a)

35.452

b)

17.452

c)

17

d)

3

15.

How many protons and electrons does this element have?

a)

35.452

b)

17

c)

17.452

d)

3

16.

How many neutrons does Chlorine have?

a)

18.452

b)

17

c)

35.452

d)

3

17.

What is the atomic mass of Neon?

a)

2

b)

10

c)

10.179

d)

20.179

18.

How many neutrons does calcium have?

a)

20.078

b)

40.078

c)

4

d)

20

19.

What electrical charge does one proton have?

a)

+1

b)

0

c)

-1

d)

+2

20.

What mass does one neutron have?

a)

1

b)

0

c)

-1

d)

+2

21.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
22.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

23.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
24.

What does the 6 represent?

a)

Atomic mass

b)

atomic number

c)

chemical symbol

d)

element name

25.

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

a)

20

b)

10

c)

35

d)

25

26.

How many electrons does this atom have?

a)

2

b)

4

c)

6

d)

10

27.
Where electrons are likely to be found as they travel around the nucleus
a)
Nucleus
b)
Electron Cloud
c)
Within a Proton
d)
Within a Neutron
28.

Which subatomic particles effect the stability of an atom? Click all that apply

a)

Protons

b)

Neutrons

c)

Electrons

d)

Electron Cloud

29.

What has Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons?

a)

Ions

b)

Isotopes

c)

Nucleus

d)

Neutron

30.

What is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons?

a)

Ion

b)

Isotope

c)

Nucleus

d)

Neutron

31.

What seems to make the center of the atom unstable?

a)

Unequal amount of protons and neutrons

b)

Unequal amount of protons and electrons

c)

Unequal amount of neutrons and electron

d)

Unequal everything

32.

Anions tend to have

a)

High Valence

b)

Neutral Valence

c)

Postive Valence

d)

Negative Valence

33.

Cations tend to have:

a)

High Valence

b)

Neutral Valence

c)

Positive Valence

d)

Negative Valence

34.

How is carbon-12 different from carbon-14?

a)

They have different number of protons

b)

They have different number of electrons

c)

They have different number of neutrons

d)

Everything is different

35.

What is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons?

a)

Ions

b)

Isotopes

c)

Nucleus

d)

Neutrons

36.

What contribution did John Dalton make to atomic theory?

a)

He discovered every atom was positively charged.

b)

He discovered every element consisted of one type of atom.

c)

He discovered that atoms had nuclei.

d)

He discovered atoms could be divided into smaller parts.

37.

Which subatomic particles effect the stability of an atom? Click all that apply.

a)

Protons

b)

Neutrons

c)

Electrons

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