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Unit 1 Review

Total questions: 70

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

If a laboratory fire erupts, immediately _________.

a)

Run for the fire extinguisher.

b)

Notify your instructor.

c)

Throw water on the fire.

d)

Open the windows.

2.

You are heating a substance in a test tube. Always point the open end of the test tube ________.

a)

Toward yourself.

b)

Toward your lab partner.

c)

Toward another classmate.

d)

Away from all people.

3.

The following footwear is required in the lab ________.

a)

Sandals.

b)

Open-toe shoes.

c)

Closed-toe shoes.

d)

Shoes appropriate for the weather.

4.

True or False:

Return all unused chemicals to their original containers.

a)

True

b)

False

5.

( Fill in the blank) Long hair should be ____________ in the laboratory.

a)

tied back

b)

cut

c)

down

d)

curled

6.

Hot glass looks the same as cold glass.

a)

True

b)

False

7.
The proper technique for smelling chemicals is ______________
a)
keeping your nose close to the glassware
b)
wafting
c)
to sniff only a small amount
d)
Trick question; you never are allowed to smell chemicals in class
8.
Keeping your work area neat and clean is important because:
a)
My teacher is a neat-freak
b)
I won't lose my supplies in the clutter.
c)
It keeps the room from looking messy.
d)
It helps prevent accidents.
9.

After completing an experiment, all wastes should be

a)

taken home

b)

tossed in the trash can

c)

disposed of according to your teacher's directions

d)

left out for someone else to clean

10.

Approved eye protection devices (such as goggles) are worn in the laboratory

a)

to avoid eye strain

b)

to improve your vision

c)

so that you look super cool

d)

any time chemicals, heat or glassware are used

11.

When is it OK to eat or drink at the lab tables?

a)

Always

b)

Only during group work, not during labs

c)

Never

d)

Whenever I'm hungry

12.

The following activity is permitted in the laboratory

a)

chewing gum

b)

eating

c)

drinking

d)

none of the above

13.

Never remove chemicals, specimens, or other equipment from the laboratory.

a)

True

b)

False

14.

in the lab, you should NEVER

a)

taste substances being used

b)

wear your goggles

c)

pull your hair up if its long

d)

wear close-toed shoes

15.
Helping to clean up the lab or classroom is the job of
a)
old students.
b)
transfer students.
c)
each and every student.
d)
only the teacher.
16.
Part of lab safety includes reading the lab procedure...
a)
before doing the lab
b)
while doing the lab
c)
after doing the lab
d)
only if you think you really need it
17.
If you are not sure what to do during a lab activity:
a)
guess
b)
change lab partners
c)
ask a teacher
d)
just sit quietly and do nothing
18.

When you finish working with chemicals, biological specimens, etc., always

a)

treat your hands with skin lotion.

b)

wash your hands thoroughly with soap and water.

c)

wipe your hands on a towel.

d)

wipe your hands on your clothes.

19.

You are heating a piece of glass and now want to pick it up. You should

a)

use a rag or paper towels.

b)

pick up the end that looks cooler.

c)

use tongs.

d)

pour cold water on it.

20.

If you are injured in the laboratory, you should first

a)

visit the nurse after class.

b)

see a doctor after school.

c)

notify your science instructor.

d)

apply first aid yourself.

21.

Chipped or cracked glassware is okay to use in the laboratory.

a)

True

b)

False

22.

Which is the best description of an element?

a)

A substance that cannot be broken down into simpler substances

b)

A collection of atoms that have different abilities when joined together

c)

A man-made mineral

d)

A mixture of substances

23.
A one or two letter abbreviation  used to represent an element is called a(n) ________
a)
chemical symbol
b)
element sign
24.

In an element box, the number at top is the

a)

atomic number

b)

atomic name

c)

atomic mass

d)

atomic symbol

25.

Elements on the Periodic Table are ordered according to their

a)

element name

b)

element symbol

c)

number of atoms

d)

atomic number

26.
What is the chemical symbol for Aluminum?
a)
A
b)
Al
c)
Au
27.
Silver
a)
Si
b)
S
c)
E
d)
Ag
28.

The chemical symbol in this element box is

a)

26

b)

Fe

c)

Iron

d)

55.845

29.
What is the chemical symbol for Lithium?
a)
H
b)
He
c)
Li
d)
N
30.

"Na" is the element's

a)

Chemical Formula

b)

Compound

c)

Name

d)

Chemical Symbol

31.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

32.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

33.

where are the metaloids found

a)

far left, vertical

b)

stair step/diagonal

c)

far right horizontal

d)

at the bottom

34.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

35.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

36.

A grouping of elements based on similar chemical properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

37.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

38.
___________ is the only metal that is a liquid at room temperature.
a)
Platinum
b)
Water
c)
Tin
d)
Mercury
39.
__________ would have some characteristics of metals and some characteristics of nonmetals.
a)
Gold
b)
Sodium
c)
Arsenic
d)
Bismuth
40.

Metals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

are malleable and ductile.

41.

Nonmetals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

can be solid, liquids, or gases at room temperature.

42.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

43.

Which halogen is found in period 4?

a)

Krypton (Kr)

b)

Xenon (Xe)

c)

Bromine (Br)

d)

Iodine (I)

44.

Which element has similar chemical properties as sodium but has 7 energy levels?

a)

Francium (Fr)

b)

Cesium (Cs)

c)

Rubidium (Rb)

d)

Potassium (K)

45.

Elements that have the same number of energy levels are said to be in the same ______.

a)

group

b)

period

c)

family

d)

classification

46.

Which element has exactly 10 protons?

a)

Argon

b)

Boron

c)

Neon

d)

Hydrogen

47.

Which of the following elements is not a metal?

a)

Copper

b)

Tin

c)

Sodium

d)

Helium

48.

Which element is not a nonmetal?

a)

Hydrogen

b)

Oxygen

c)

Potassium

d)

Nitrogen

49.

How many neutrons does a Chlorine atom have?

a)

17

b)

18

c)

35

d)

36

50.

What is the correct symbol for Beryllium?

a)

B

b)

Be

c)

Bi

d)

Br

51.

What is the approximate atomic mass of a Silicon atom?

a)

14

b)

28

c)

29

d)

27

52.

Which of the following elements is not a halogen?

a)

Selenium

b)

Chlorine

c)

Bromine

d)

Iodine

53.

Which element is a noble gas?

a)

Tellurium

b)

Xenon

c)

Oxygen

d)

Nitrogen

54.

What is the name of the element in group 2, period 4?

a)

Titanium

b)

Carbon

c)

Calcium

d)

Magnesium

55.

What is the symbol of the element in group 13, period 3?

a)

Al

b)

Ga

c)

Ge

d)

B

56.
What does the 6 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
57.
What does 12.011 represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol 
58.
These are found on the Periodic Table.
a)
Compounds
b)
Elements
c)
Mixtures
59.

the positively charged subatomic particle contained in the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

60.

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

a)

proton

b)

neutron

c)

electron

d)

matter

61.

a negatively charged subatomic particle that orbits the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

62.

one or two letters that represent the name of an element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

63.
Most of the mass of an atom is found it its _____.
a)
electron cloud
b)
nucleus
c)
atomic number
d)
empty space
64.
Which is an electron?
a)
A
b)
B
c)
C
65.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
66.

Which color on the image of the periodic table corresponds with the metalloids.

a)

bright yellow

b)

gold

c)

teal

d)

light blue

67.

The periodic table is mostly comprised of what type of element?

a)

Metals

b)

Nonmetals

c)

Metalloids

68.

Which elements are to the LEFT of the zigzag?

a)

metals

b)

nonmetals

c)

metalloids

69.

Which elements are colored red?

a)

nonmetals

b)

metals

c)

metalloids

70.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty

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