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Atoms and bonding intro

Total questions: 35

Worksheet time: 25mins

Name
Class
Date
1.

On the periodic table, Groups are

a)

Horizontal rows

b)

Vertical columns

2.

On the periodic table, Periods are

a)

Horizontal rows

b)

Vertical columns

3.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

4.

The innermost energy level has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

5.

What does the Bohr Model represent?

a)

The structure of molecules

b)

The structure of the Solar System

c)

The structure of an atom

d)

The structure of East Hills

6.

What is the atomic number of this atom?

a)

2

b)

4

c)

6

d)

8

7.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

8.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

9.

Which group includes non-reactive gasses that have a full outer electron shell?

a)

Alkai Metals

b)

Alkaline Metals

c)

Halogens

d)

Noble Gases

10.

Which group includes soft, highly reactive metals with one electron in their outer shell?

a)

Alkai metals (group 1)

b)

Alkaline metals (group 2)

c)

Halogens (group 17)

d)

Noble gasses (group 18)

11.

How many protons in a Lithium atom?

a)

7

b)

4

c)

3

12.

How many neutrons are found in the Lithium atom?

a)

7

b)

3

c)

4

13.

How many electrons are found in a Chlorine atom?

a)

35

b)

18

c)

17

14.

What is the maximum number of electrons in the 2nd orbit?

a)

2

b)

8

c)

18

d)

31

15.

How many protons in the Calcium atom?

a)

20

b)

18

c)

16

d)

22

16.

What is the maximum number of electrons in the outer orbit?

a)

2

b)

8

c)

18

d)

2 or 8

17.

This particle balances the charges from the protons to make the atom neutral

a)

proton

b)

electron

c)

neutron

d)

nucleus

18.

These particles are found in the nucleus

a)

protons and electrons

b)

nucleus and neutrons

c)

protons and neutrons

d)

electrons and neutrons

19.
Protons have this charge -
a)
positive
b)
negative
c)
neutral
d)
no charge
20.
Neutrons have this charge -
a)
positive
b)
negative
c)
neutral
d)
They don't exist
21.
An atom's overall charge is ________.
a)
positive 
b)
depends
c)
neutral 
d)
negative 
22.

Where are electrons found?

a)

Outside the nucleus

b)

Under my bed

c)

Inside the nucleus

d)

Inside a proton

23.

How many valence electrons does an atom of carbon have?

a)

0

b)

2

c)

4

d)

6

24.

In the formula H2O, what does the number 2 indicate?

a)

There are two atoms of hydrogen in this molecule.

b)

Each hydrogen atom loses two electrons to the oxygen atom.

c)

Each hydrogen atom gains two electrons from the oxygen atom.

d)

Two atoms each of hydrogen and oxygen are in this molecule.

25.

Which of the following is formed between atoms when they share electrons?

a)

ionic bond

b)

salt

c)

covalent bond

d)

electrical bond

26.

What is the term for matter that is made up of two or more different kinds of atoms joined by chemical bonds?

a)

element

b)

compound

c)

metal

d)

nobel gas

27.

All atoms are most stable with (or would "prefer") how many electrons in their valence shell?

a)

1

b)

2

c)

8

d)

18

28.

When trying to identify an unknown element, a scientist determines what other elements reacts with it chemically. Which property of the unknown element determines the other element it reacts with?

a)

The total number of neutrons in the unknown element

b)

The total number of particles in the nucleus of the unknown element

c)

The number of protons in the nucleus of the unknown element

d)

The number of valence electrons in the unknown element

29.
Atoms are most stable when their outer shell is complete.
a)
true
b)
false
30.
How are covalent bonds formed?
a)
Sharing of electrons
b)
Transfer of electrons
31.
How are ionic bonds formed?
a)
Transfer of electrons
b)
Sharing of electrons
32.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
33.
Atoms that gain electrons become...
a)
negatively charged
b)
positively charged
c)
remain neutrally charged
d)
21
34.
What happens when an atom loses an electron?
a)
It becomes Negatively Charged
b)
It remains neutral because the proton also leaves.
c)
It becomes Positively Charged
d)
It stays the same.
35.

What type of bond is depicted in the image?

a)

Covalent

b)

Polar Covalent

c)

Ionic

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