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Bohr and Lewis Dot

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.
How many electrons does Si contain? (click to see image)
a)
14
b)
28
c)
2
d)
None of these
2.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
3.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
4.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
5.
How many dots would a Lewis Dot structure of Helium have?
a)
1
b)
2
c)
8
d)
0
6.
How many valence electrons are in Phosphorus?
a)
15
b)
4
c)
5
d)
31
7.
The majority of an atom's mass exists where?
a)
In the nucleus
b)
In the electron cloud
c)
In the space between the nucleus and the electrons
d)
In the neutrons
8.
How many electrons are in the outer shell of Sodium (Na)?
a)
3
b)
1
c)
2
d)
4
9.
?
a)
Boron
b)
Carbon
c)
Nitrogen
d)
Lithium
10.

What Element does this Bohr Model show?

a)

Helium

b)

Hydrogen

c)

Argon

d)

Silver

11.

What is a Bohr Model?

a)

a simplified representation of an atom

b)

vertical column in periodic table

c)

horizontal row in periodic table

d)

Only shows the element symbol and it's outer most electron shell

12.

What are the names of the 2 models that we have been using?

a)

Bohr and Newton Structures

b)

Lewis and Caroll Models

c)

Bohr Model & Lewis Dot Structure

d)

Element & Atom structures

13.

What is a Lewis Dot Structure?

a)

It shows all of the particles in the atom.

b)

Contains protons and neutrons

c)

Only shows the element symbol and it's outer most electron shell

d)

Contains protons and electrons

14.

What do we call many atoms of the same type; has unique properties such as melting and boiling points?

a)

Atoms

b)

Elements

c)

Isotope

d)

Ions

15.

Why do carbon, silicon, and tin all react similarly?

a)

They are located in the same period

b)

They have an even atomic number

c)

They have the same number of energy levels

d)

They are located in the same group

16.

Is this a correct dot diagram for fluorine (F)

a)

Yes

b)

No

17.

Is this a correct dot diagram for magnesium (Mg)

a)

Yes

b)

No

18.
How many electrons should Nitrogen have around its Lewis dot model?
a)
1
b)
3
c)
4
d)
5
19.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
20.

Which of these is incorrect?

a)
b)