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Bonding: Mobile Electrons, Forces, Atom Lewis Dot

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

What is electricity?

a)

a flow of free moving electrons

b)

a flow of free moving protons

c)

a flow of free moving atoms

d)

a flow of free moving molecules

2.

If a positive charge and a negative charge get close together, what will happen?

a)

The positive and negative charges repel each other.

b)

The positive and negative charges get further away from each other.

c)

The positive and negative charges attract to one another.

d)

The positive and negative charges stop moving.

3.

When 2 electrons get close to each other, what will happen?

a)

The 2 electrons will attract to each other.

b)

The 2 electrons will repel each other.

c)

The 2 electrons bond together.

d)

The 2 electrons get closer together.

4.

Why are the valence electrons of an atom easier to remove than inner electrons?

a)

Valence electrons are closer to the nucleus.

b)

Valence electrons are more attracted to the positive nucleus.

c)

Valence electrons require more energy to remove.

d)

Valence electrons require less energy to remove.

5.

What could cause a valence electron to get ejected from an atom?

a)

The valence electron is attracted to another positive charge.

b)

The valence electron is attracted to another negative charge.

c)

The valence electron is pushed away by a positive charge.

d)

The valence electron falls off without any outside forces.

6.

What is the definition of metallic bonding?

a)

Bonding that shares valence electrons between nonmetals.

b)

Bonding that transfers valence electrons from a metal to a nonmetal.

c)

Bonding that holds metal atoms together through a sea of mobile electrons.

d)

Bonding that attaches nonmetal atoms to metal atoms.

7.

Why is H2O considered a polar molecule?

a)

H2O has a positive side and a negative side.

b)

H2O has evenly distributed charge.

c)

H2O is overall positively charged.

d)

H2O is overally negatively charged.

8.

What is the purpose of a Lewis Dot Diagram?

a)

To show all of the electrons and the energy levels they are placed in.

b)

To show the protons, neutrons and electrons in an atom.

c)

To show only the valence electrons and how they form chemical bonds.

d)

To show only the protons present in an atom.

9.

Which of the following is the accurate Lewis Dot Diagram for Hydrogen? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
10.

Which of the following is the accurate Lewis Dot Diagram for Sodium (Na)? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
11.

Which of the following is the accurate Lewis Dot Diagram for Carbon? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
12.

Which of the following is the accurate Lewis Dot Diagram for Fluorine? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
13.

Which of the following is the accurate Lewis Dot Diagram for Nitrogen? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
14.

Which of the following is the accurate Lewis Dot Diagram for Boron? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
15.

Which of the following is the accurate Lewis Dot Diagram for Neon? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
16.

Which of the following is the accurate Lewis Dot Diagram for Sulfur? (Click on the periodic table to enlarge it.)

a)
b)
c)
d)
17.

Survey: How confident do you feel with drawing and identifying Lewis Dot Diagrams for atoms?

a)

I do not feel confident at all and need 1:1 help.

b)

I am getting there, but need more practice.

c)

I can identify the correct Lewis Dot Diagrams pretty well, but have trouble drawing them.

d)

I am confident that I can accurately draw and identify Lewis Dot Diagrams for atoms.