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PERIODIC TABLE

Total questions: 28

Worksheet time: 45mins

Name
Class
Date
1.

In an element box, the number at top is the

a)

atomic number

b)

atomic name

c)

atomic mass

d)

atomic symbol

2.

The number of neutrons in an atom can be found by

a)

adding the number of neutrons and protons together.

b)

adding the atomic mass and the atomic number.

c)

subtratcting the atomic number from the atomic mass.

d)

subtracting the atomic mass from the atomic number.

3.

___________________ are positively charged particles located in the nucleus of an atom.

a)

Electrons

b)

Neutrons

c)

Protons

d)

Isotopes

4.

Isotopes are atoms of the same element with different numbers of

a)

electrons

b)

neutrons

c)

protons

d)

nuclei

5.

Elements on the Periodic Table are ordered according to their

a)

element name

b)

element symbol

c)

number of atoms

d)

atomic number

6.

Rows in the Periodic Table are called

a)

Periods

b)

Groups/Families

c)

Cousins

d)

Metals

7.

Column in the Periodic Table are called

a)

Periods

b)

Groups/Families

c)

Cousins

d)

Metals

8.

The nucleus of an atom is located in its

a)

electron cloud

b)

center

c)

proton

d)

backpack

9.

What do atoms of the same periodic group have in common?

a)

They have the same atomic number.

b)

They have the same chemical symbols.

c)

The have similar chemical properties.

d)

They have the same atomic mass.

10.

The smallest particle of an element that has the same chemical properties of the element is

a)

a molecule of that element.

b)

an atom of that element.

c)

a proton of that element.

d)

the nucleus of the element.

11.

Protons have a ____________ charge, neutrons have a ____________ charge, and electrons have a ____________ charge.

a)

positive; negative, neutral

b)

positive, neutral, negative

c)

neutral, negative, positive

d)

negative, neutral, positive

12.

The history of the Atomic Theory involves many changes from its early form. Theories change because

a)

people decide to no longer agree with them.

b)

all theories must be changed after a certain time.

c)

new evidence is found that allows the theory to be changed.

d)

when scientists die, their theories are always changed.

13.

The chemical symbol in this element box is

a)

26

b)

Fe

c)

Iron

d)

55.845

14.

Models are used to study atoms because atoms are very

a)

dangerous

b)

sneaky

c)

rare

d)

small

15.

The Periodic Table of elements is arranged according to an element's

a)

color

b)

state of matter

c)

place in the alphabet

d)

properties

16.

All matter is made of

a)

electrons

b)

protons

c)

neutrons

d)

atoms

17.

Which scientist created the Periodic Table and arranged elements in increasing atomic mass?

a)

Rutherford

b)

Thomson

c)

Mendeleev

d)

Moseley

18.

What is the name of Group 1 elements?

a)

Alkali Metals

b)

Alkaline Earth Metals

c)

Transition Metals

d)

Halogens

19.

What is the name of the elements that are unreactive and have a full octet?

a)

Halogens

b)

Noble Gases

c)

Alkali Metals

d)

Transition Metals

20.

What is an atom or bonded group of atoms that has a positive or negative charge?

a)

ion

b)

atom

c)

metal

d)

nonmetal

21.
What was Dmitri Mendeleev's greatest contribution to the history of the periodic table?
a)
He arranged all of the known elements by their atomic number
b)
He realised that there was a pattern of reactivity which repeated every 8 elements
c)
He predicted the existence (and properties) of new elements
d)
He identified the "law of triads" which became the groups
22.
Why were there blank spaces left in Mendeleev's periodic table?                                              
a)
He didn't know what to put there.
b)
 Undiscovered elements not yet known.
c)
Multiple elements could have fit
d)
He forgot to add the elements in.
23.
Moseley discovered that the ________ was the most fundamental property needed for organization.                                                 
a)
atomic mass
b)
mass number
c)
atomic number
d)
number of protons
24.

The first energy shell can hold ______ electrons.

a)

2

b)

8

c)

18

25.
Each inner energy level of an atom has a maximum number of ____ it can hold
a)
electron
b)
proton
c)
neutron
d)
quark
26.
Place the following scientists in order, from earliest to latest: 
A) Ernest Rutherford
B) J.J. Thomson
C) John Dalton
a)
B,C,A
b)
C,A,B
c)
A,C,B
d)
C,B,A
27.
Bohr's model of the atom proposed that ___.
a)
electrons move around the nucleus in fixed orbits
b)
neutrons move around the nucleus
c)
neutrons do not exist, but are just paired protons and electrons
d)
the nucleus spins
28.
Which of the following correctly describes the electron cloud model?
a)
Electrons do not follow fixed orbits, but are found more frequently in areas around the nucleus.
b)
Electrons are found in fixed orbitals around a positive nucleus.
c)
All of an atom's mass is concentrated in the electron cloud around the nucleus.
d)
Electrons are evenly embedded throughout a positively charged sphere.

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