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Atoms and Isotopes Review

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

What is an atom?

a)

The guy down the street.

b)

Smallest possible unit into which matter can be divided, while still maintaining its properties.

c)

Biggest possible unit that cannot be divided

2.

What is Matter?

a)

How you feel about someone.

b)

The smallest unit found on Earth

c)

Anything that has mass and takes up space (volume)

3.

Positively charged particles

a)

Proton

b)

Electron

c)

Neutron

4.

What is the Periodic Table of Elements?

a)

Where all elements are listed according to qualities and the Atomic Number.

b)

A table that Aristotle ate at with Einstein.

c)

Where elements are listed alphabetically.

5.

What is the Periodic Table of Elements?

a)

Where all elements are listed according to qualities and the Atomic Number.

b)

A table that Aristotle ate at with Einstein.

c)

Where elements are listed alphabetically.

6.

What are Neutrons?

a)

Contribute to the atomic mass

b)

Help make up the nucleus of the atom.

c)

Neutral particles; have no electric charge.

d)

All of the above

7.

What are electrons?

a)

Positively charged particles

b)

Negatively charged particles

c)

Particles that charge you

8.

What are Valence Electrons?

a)

Electrons in the inner energy level

b)

Electrons in the outer energy level

c)

Electrons that validate the nucleus

9.

The mass number is when you add what?

a)

Protons

b)

Neutrons

c)

Electrons

10.
all matter is made of what 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
11.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
12.
True or False? Neutrons have a negative charge
a)
True
b)
False
13.
 What is at the center of every atom? 
a)
nucleus
b)
neutron
c)
proton
d)
all of these 
14.
 An atom is neutral if...    
a)
The number of protons = electrons
b)
The number of neutrons = protons
c)
The number of protons∠ electrons
d)
 Electrons+Neutrons = 0
15.
The smallest common particle in the atom...   
a)
electron
b)
proton
c)
nucleus 
d)
neutron
16.
____ with specific characteristics and is made up of only one atom 
a)
protron
b)
8
c)
chemical
d)
Element
17.
an atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
18.
Which element is this on the periodic table?
a)
3rd element
b)
7th element
c)
13th element
d)
6th element
19.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
20.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion