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chemistry unit 1 quiz review

Total questions: 47

Worksheet time: 24mins

Name
Class
Date
1.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
2.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
3.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
4.

__________ are negatively charged particles that are in the orbitals around the nucleus.

a)

protons

b)

nucleus

c)

neutrons

d)

electrons

5.

An electron has a _________ charge

a)

positive

b)

neutral

c)

negative

d)

massive

6.

A neutron has _________ charge or is ________.

a)

negative ... neutral

b)

positive .... neutral

c)

no .... negative

d)

no ... neutral

7.
Which is an electron?
a)
A
b)
B
c)
C
8.

The smallest part of any element. Made up of protons, neutrons and electrons.

a)

Atom

b)

AMU

c)

Ion

d)

Isotope

9.

How many atoms of Hydrogen are in H2O

a)

1

b)

2

c)

3

d)

more than 3

10.

What is the chemical symbol for Hydrogen

a)

H

b)

He

c)

Hy

d)

Hg

11.
An atoms overall charge is 
a)
positive 
b)
depends on its mood 
c)
neutral 
d)
negative 
12.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
13.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
14.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
15.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
16.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
17.

H₂O is a compound molecule.

a)

TRUE

b)

FALSE

18.

O2 is a compound molecule.

a)

TRUE

b)

FALSE

19.

Group of atoms bonded together

a)

Mixture

b)

Compouns

c)

Atom

d)

Molecules

20.

a lasting attraction between atoms that enables the formation of chemical compounds

a)

bond

b)

atomic mass

c)

nucleus

d)

molecule

21.

made up of atoms of two or more different elements joined together by chemical bonds

a)

molecule

b)

element

c)

atom

d)

compound

22.
How many carbon atoms are there in a methane molecule? 
a)
0
b)
1
c)
4
d)
5
23.
What is the total number of atoms in an ammonia (NH3) molecule?
a)
1
b)
2
c)
3
d)
4
24.
Carbon dioxide (CO2) contains how many atoms of oxygen?
a)
0
b)
1
c)
2
d)
3
25.
How many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?
a)
6
b)
12
c)
18
d)
24
26.

what is the job of the electron?

a)

to hold the atom together

b)

give the atom its identify

c)

gives it a negative charge

d)

to bond with other atoms

27.

what is the job of the proton

a)

give the atom a positive charge

b)

give the atom its identity

c)

bond to other atoms

d)

hold the nucleus together

28.

what is the job of the neutrons

a)

to hold the nucleus together

b)

give the atom its identity

c)

bond with other atoms

d)

give the atom gravity

29.

___________________________a substance in which the particles are arranged in an orderly geometric, and repeating pattern.

a)

atom

b)

molecule

c)

crystal

d)

compound

30.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
31.

______________ refers to the way a metal can be hammered or rolled into thin sheets.

a)

Luster

b)

Malleable

c)

Metalloids

d)

Solid

32.

Metals are found on the ______________ side of the periodic table.

a)

nonmetals

b)

left

c)

right

d)

metals

33.

This group of elements have properties that are opposite those of metals. ______________________

a)

luster

b)

nonmetals

c)

metalloids

d)

metals

34.

This group of elements sit along a stair step line on the periodic table and have properties of both metals and nonmetals. _________________________

a)

luster

b)

metals

c)

nonmetals

d)

metalloids

35.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

36.

Name this element.

a)

Argon

b)

Chlorine

c)

Aluminum

d)

Boron

37.

Name this element.

a)

Neon

b)

Magnesium

c)

Sodium

d)

Manganese

38.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
39.

Which of the following is the correct definition of density?

a)

The amount of stuff in an object

b)

The amount of space an object takes up

c)

A measure of the force of gravity on an object

d)

The amount of matter (mass) packed into a space (object)

40.
Which is an example of a physical property?
a)
ability to react with acid
b)
 state of matter
c)
flammability
d)
ability to react with oxygen
41.

All of the following are examples of physical properties EXCEPT

a)

Density

b)

Heat conductivity

c)

pH (acidic or basic)

d)

Boiling point

42.

Which of the following is a chemical property of water?

a)

Reacts with pure sodium

b)

Boils at 100 oC

c)

Is liquid at room temperature

d)

Has a density of 1 gm/mL

43.

What is the outcome of observing a chemical property?

a)

Nothing

b)

A new substance is formed with different properties

c)

NaCl

d)

A rise in thermal conductivity

44.
What is the definition of "weight"?
a)
measure of the force of gravity on your body
b)
the time it takes to get on a ride 
c)
the amount of matter in an object
d)
the size of an object
45.
A measure of how much matter an object has is--
a)
weight
b)
gravity
c)
mass
d)
volume
46.
If Earth's mass was cut in half, what would happen to your mass?
a)
increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
nothing, mass is not affected by gravitational force
47.
If Earth's mass was cut in half, what would happen to your weight?
a)
Increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
nothing, weight is not affected by gravitational force

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