wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

First nine week

Total questions: 34

Worksheet time: 2hrs 34mins

Name
Class
Date
1.

How many electrons are in the 2s orbital of Calcium?

a)

1

b)

2

c)

6

d)

10

2.

What are the sublevel orbital(s) that make up the fourth energy level (n = 4)?

a)

s

b)

s, p

c)

s, p, d

d)

s, p, d, f

3.

How many electrons are in the 2p orbital of Aluminum?

a)

6 electrons

b)

13 electrons

c)

1 electrons

d)

8 electrons

4.

What is the correct electron configuration of Fluorine?

a)

1s² 2s² 2p⁵

b)

[He] 2s² 2p⁶

c)

1s² 2s² 2p⁶

d)

[Li] 2s² 2p⁵

5.

What element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²?

a)

Calcium

b)

Potassium

c)

Argon

d)

Neon

6.

What element has the electron configuration 1s² 2s² 2p⁴?

a)

Oxygen

b)

Neon

c)

Fluorine

d)

Nitrogen

7.

What element has this orbital notation?

a)

lithium

b)

beryllium

c)

boron

d)

carbon

8.
Electrons are paired based on their spin directions, clockwise and counterclockwise, is what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
9.

What is the charge and mass of a neutron?

a)

+1 charge, 1 amu

b)

0 charge, 1 amu

c)

0 charge, 0 amu

d)

-1 charge, 0 amu

10.

What is the charge and mass of a proton?

a)

+1 charge, 1 amu

b)

0 charge, 1 amu

c)

0 charge, 0 amu

d)

-1 charge, 0 amu

11.

How many valence electrons are in Chlorine

a)

4

b)

5

c)

6

d)

7

12.
This is the correct dot diagram for sodium (Na)
a)
true
b)
false
13.
This is a correct dot diagram for fluorine (F)
a)
true
b)
false
14.
What does an atom's electron-dot structure consist of ? 
a)
the elements atomic number and mass number which represents the number of protons and neutrons
b)
the element's symbol, which represents the atomic nuclues and inner-level electrons,surrounded by dots representing all of the atom's valence electrons
15.
What should you do if you break glass in the lab?
a)
Tell the teacher.
b)
Sweep up the glass.
c)
Pick up the glass with your hands.
d)
Ignore it; the teacher will clean it up when she sees it later.
16.
In the event of broken equipment, what should you do?
a)
stop using the equipment and report it immediately
b)
continue using the equipment and report it immediately
c)
stop using the equipment and report it later
d)
continue using the equipment and report it later
17.
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
18.

What is a example of lab safety?

a)

Keep your hair down

b)

Eat a snack before an experiment

c)

Keep your goggles on at all times

d)

Play around the equipment

19.
"Everything is composed of atoms" was stated by:
a)
Democritis
b)
Dalton
c)
Moseley
d)
Einstein
20.
John Dalton stated:
a)
elements are made of atoms
b)
atoms of a given element are identical
c)
atoms cannot be subdivided, created, nor destroyed
d)
all of the above
21.
The scientist responsible for "discovering" the nucleus is:
a)
Bohr
b)
Rutherford
c)
Schroedinger
d)
Einstein
22.
The nucleus of an atom can be described as:
a)
spacious and negatively charged
b)
dense and positively charged
c)
spacious and positively charged
d)
dense and negatively charged
23.
How did Rutherford discover the proton?
a)
Cathode tube ray experiment
b)
Gold Foil Experiment
c)
Planetary Model
d)
Plum Pudding Model
24.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
25.
The word "atom" comes from a Greek word that means
a)
Invisible
b)
Indivisible
c)
Undivided
26.
Electrons can be found in
a)
The protons
b)
The nucleus
c)
Electron Clouds
27.

Sir J.J. Thompson discovered the electron in 1897. How did Thompson explain the overall neutral charge of the atom?

a)

Electrons are present all over the atom, even in the nucleus.

b)

Electrons alternate between positive and negative charges.

c)

Negative electrons were inside a cloud of positive charge.

d)

Electrons travel around the nucleus at great speeds.

28.

What is the atomic number of this atom?

a)

2

b)

4

c)

6

d)

none of the above

29.

A tentative scientific explanation that can be tested by further observation or by experimentation

a)

Observation

b)

Inference

c)

Hypothesis

d)

Controlled Experiment

30.

When a hypothesis is tested by an experiment in which only one variable is changed and all other variables should be kept unchanged.

a)

Observation

b)

Inference

c)

Hypothesis

d)

Controlled Experiment

31.

The act of noticing and describing events or processes in a careful, orderly way

a)

Observation

b)

Inference

c)

Hypothesis

d)

Controlled Experiment

32.

What is one goal of science?

a)

Provide natural and testable explanations for events in the natural world

b)

Provide a source of data for companies to use for advertisement and making claims

c)

Provide experiments that can later be used to make a hypothesis

d)

Provide observations and drawing conclusions without having supporting data

33.

What does this symbol mean?

a)

Harmful Irritant

b)

Oxidising

c)

Flammable

d)

Corrosive

34.
What does this symbol indicate?
a)
Corrosive substances are present; protect your hands.
b)
Wash your hands.
c)
Extreme temperatures are present; wear appropriate gloves.
d)
Bacteria are present.