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Atoms Atoms Atoms

Total questions: 25

Worksheet time: 23mins

Name
Class
Date
1.
What is matter composed of?
a)
Cells
b)
Atoms
2.
The central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
3.
True or False? Neutrons have a negative charge
a)
True
b)
False
4.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
5.
electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
6.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
7.
Atoms make up, what?
a)
Everything living and nonliving
b)
Energy
8.
A part of the atom that has a negative charge is?
a)
Proton
b)
electron
c)
neutron
9.
The part of the atom that is moving around the nucleus is called?
a)
electron
b)
neutron
c)
proton
10.
If an atom has 3 electrons, how many protons does it have?
a)
1
b)
2
c)
4
d)
3
11.

The smallest particle into which an element can be divided and still be the same element is a(n)

a)

proton

b)

neutron

c)

electron

d)

atom

12.

Which subatomic particle has a positive charge?

a)

proton

b)

nuetron

c)

electron

d)

atom

13.

Which subatomic particle has a negative charge?

a)

proton

b)

neutron

c)

electron

d)

atom

14.

Which subatomic particle has a neutral (0) charge?

a)

proton

b)

nuetron

c)

electron

d)

atom

15.
The central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
16.

What is the chemical symbol of this element?

(a)  

17.

How many proton and electrons does the element sodium have?

(a)  

18.

What is the atomic mass (weight ) of oxygen?

(a)  

19.

What is the chemical name for the element Magnesium?

(a)  

20.

How many Element are in the the compound salt NaCl

(a)  

21.

CO2 the compound carbon dioxide has how many atoms of Oxygen?

(a)  

22.

This is the chemical formula for the compound alcohol C2H6O. How many atoms of hydrogen are in this compound?

(a)  

23.

This is the chemical formula for the compound bleach, NaOCl. How many elements are in this compound?

(a)  

24.

This is the chemical formula for the compound bleach, NaOCl. How many atoms of chlorine are there?

(a)  

25.

A compound is correctly defined as

a)

the smallest unit of an element

b)

A substance that is made up of one type of atom

c)

Two or more element that come together to form another substance

d)

Anything that has mass and takes up space