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Worksheets

How Atoms Bond

Total questions: 24

Worksheet time: 13mins

Name
Class
Date
1.
What kind of bond forms between two nonmetals?
a)
ionic 
b)
covalent
c)
metallic
d)
fake
2.
Covalent bonds are between...
a)
two or more nonmetals
b)
sodium and chlorine
c)
metals and metals
d)
metals and nonmetals
3.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
4.
What is the number of valence electrons for Oxygen?
a)
8
b)
6
c)
2
d)
1
5.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
6.
Chemical bonds form when atoms
a)
combined nuclei
b)
give up neutrons
c)
gain protons
d)
share or transfer electrons
7.

__________________ are created from atoms making connections with other atoms

a)

Molecule

b)

Chemical Bonds

c)

Atomic Composition

d)

Chemical Structure

8.

What is the arrow pointing to?

a)

Atom

b)

Molecule

c)

Chemical Bond

d)

Element

9.

__________________ is the types and numbers of elements that make up a substance.

a)

Molecule

b)

Chemical Bonds

c)

Atomic Composition

d)

Chemical Structure

10.

What is circled in the picture?

a)

Atom

b)

Molecule

c)

Chemical Bond

d)

Element

11.

A student was playing with a molecule model kit, and built the grape sugar molecule in the picture. Table sugar's chemical formula is C12H22O11. What is the difference between the sugar molecules?

a)

They are the same.

b)

ten carbon, six hydrogen, six, oxygen

c)

six carbon, six hydrogen, twelve oxygen

d)

Six carbon, twelve hydrogen, six oxygen

12.

Chemical bond is ...

a)

the physical mixing of two different atoms.

b)

the force that holds two atoms together

c)

the energy used up when two atoms combined.

d)

the temperature that changes the phase of matter.

13.

Why does an atom tend to chemically bond with another atom?

a)

To become more stable

b)

To remain on its present state

c)

To maintain its energy

d)

To decrease its stability

14.

How many atoms of Carbon are in one molecule of C3H8?

a)

3

b)

8

c)

11

d)

24

15.

What is the name of the ionic bond created between atoms of Oxygen (O) and Aluminum (Al)?

a)

Oxygen Aluminum

b)

Oxygen Aluminide

c)

Aluminum Oxygen

d)

Aluminum Oxide

16.

What part of the atom is involved in a chemical bond?

a)

the nucleus

b)

the protons

c)

the neutrons

d)

the electrons

17.

When does chemical bond occur?

a)

when an electron is transferred into another atom

b)

when an atom share its electron with another atom

c)

when the valence electrons of the atom is complete

d)

when the atom has an equal number of protons and electrons

18.

Why does an atom tend to chemically bond with another atom?

a)

To become more stable

b)

To remain on its present state

c)

To maintain its energy

d)

To decrease its stability

19.
Atoms are held together by ____________.
a)
molecules
b)
chemical bonds
c)
chemical reactants
d)
electrons
20.

What are valence electrons?

a)

sum of the protons and neutrons

b)

protons minus electrons

c)

electrons in the inner shells

d)

electrons in the outer shell

21.

Atoms form compounds to become more ---

a)

reactive

b)

stable

c)

explosive

d)

toxic

22.

An electron has a ___ charge.

a)

no charge

b)

positive

c)

negative

d)

it depends

23.

A proton has a ___ charge.

a)

positive

b)

negative

c)

no charge

d)

it depends

24.

According to the Octet Rule, atoms of elements react with each other in order to attain ____ electrons in their outermost energy level or shell.

a)

2

b)

4

c)

8

d)

10