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Elements and the Periodic Table

Total questions: 74

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

What is an atom?

4 lines
2.

Dalton's Atomic Theory States that:

a)

All elements consist of atoms that cannot be divided

b)

All atoms of the same element are different

c)

An atom of one element can be changed to an atom of a different element by a chemical reaction

d)

Compounds are formed when atoms of more than one element combine in a specific ratio

3.

What did Thomson discover about atoms?

4 lines
4.

Which scientist developed the model of the atom shown?

a)

Chadwick

b)

Thomson

c)

Rutherford

d)

Bohr

5.

Which scientist described a positively charged core (“nucleus”) in the middle of a lot of empty space?

a)

Chadwick

b)

Thomson

c)

Rutherford

d)

Bohr

6.
This model this model was the first to show a nucleus, consisting of protons and neutron.  Electrons surround the nucleus but are not shown in distinct energy levels. 
a)
The "Rutherford Model" of the atom
b)
The "Plum Pudding Model" of the atom
c)
The "Quantum Mechanical Modell" of the atom
d)
Democritus's model of the atom
7.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
8.

How many neutrons would you expect the average gold atom to have given the information shown?

a)

79

b)

118

c)

197

d)

276

9.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
10.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
11.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
12.
Isotopes are atoms of the same element with different #’s of __________ & therefore different __________.
a)
n0 ;  atomic #’s
b)
p+ ; atomic #’s
c)
e- ; atomic masses
d)
n0 ; atomic masses
13.

What is the periodic table?

a)

a chart of the elements

b)

the average mass of all the isotopes of an element

14.

True or False: The elements in the current periodic table are arranged in order of atomic mass.

a)

True

b)

False

15.

What is the name of this element?

a)

Oxygen

b)

Tin

c)

Sulfur

d)

Magnesium

16.

What is the atomic number of this element?

a)

8

b)

15.999

17.

What is the chemical symbol of this element?

a)

O

b)

Ox

c)

Oy

d)

Og

18.

What is a row of elements on the periodic table called?

a)

period

b)

group

19.

What is a column of elements on the periodic table called?

a)

period

b)

group

20.

What does malleable mean?

a)

able to be hammered or bent

b)

ability to move heat and electricity

c)

conducts heat and electricity only sometimes

21.

What is a conductor?

a)

able to be hammered or bent

b)

can move heat and electricity

c)

can move heat and electricity sometimes

22.

What is a semiconductor?

a)

can be hammered or bent

b)

can move heat and electricity

c)

can move heat and electricity sometimes

23.

Reactivity means the ability to bond with other atoms.

a)

True

b)

False

24.

Which group has the most reactive metals?

a)

Alkali metals

b)

Halogens

25.

Which group has the least reactive gases?

a)

Halogens

b)

Noble gases

26.

Which group has the magnetic elements iron, cobalt, and nickel?

a)

Transition Metals

b)

Alkaline Earth Metals

27.

Which group has very reactive nonmetals like fluorine and chlorine?

a)

Halogens

b)

Noble Gases

28.

Which group has the element we need for breathing?

a)

Boron Family

b)

Oxygen Family

29.

Which group of elements contain the most useful semiconductors?

a)

Metals

b)

Nonmetals

c)

Metalloids

30.

Use the table.


An unknown substance is a semi-conductor and is very brittle. This unknown substance could be which of the following elements form the table?

a)

Copper

b)

Mercury

c)

Boron

d)

Hydrogen

31.

Use the Table.


An unknown substance takes the shape of its container and has a mirror like luster. This unknown substance could be which of the following elements from the table?

a)

Mercury

b)

Hydrogen

c)

Boron

d)

Copper

32.

An unknown substance is colorless and has a very low density. This unknown substance could be which of the following elements form the table?

a)

Boron

b)

Mercury

c)

Hydrogen

d)

Copper

33.

An unknown substance is a very good conductor of heat and electricity and can be bent and shaped easily. This unknown substance could be which of the following elements form the table?

a)

Boron

b)

Mercury

c)

Hydrogen

d)

Copper

34.

a)

metalloid

b)

nonmetal

c)

metal

d)

alloy

35.
All of the following would classify an element as a metal except?
a)
Dull
b)
Luster
c)
Malleable
d)
Hard
36.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
37.
The word “luster” refers to which property of matter?
a)
The ability to conduct electrical or thermal energy
b)
Capable of being drawn out into thin wires
c)
The way a surface appears when it reflects light
d)
Suitable for being shaped by beating or rolling
38.
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
39.
If a material can easily be drawn into the shape of a wire, it is
a)
Ductile
b)
Magnetic
c)
Malleable
d)
Reactive
40.
Where are the non-metallic elements found in the periodic table?
a)
In the middle
b)
In the top rows
c)
On the left-hand side
d)
On the right-hand side
41.
Metalloids _____________
a)
have no properties of metals.
b)
have no properties of nonmetals.
c)
have some properties of both metals and nonmetals.
d)
none of the above
42.
What is a conductor?
a)
Heat and electricity move through them easily
b)
able to be drawn into a wire
c)
able to be hammered into different shapes
d)
shiny
43.
Where are metalloids located on the periodic table?
a)
to the right of nonmetals
b)
along the zig-zag line
c)
to the left of the zig-zag line
d)
to the right of the zig-zag line
44.
Which type of elements are used in computer chips, lasers, and transistors?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Metals and Metalloids
45.

The non-metal which is a very good conductor of electricity.

(a)  

46.

Which of the following metals is used for making foil to pack foodstuff?

a)

Aluminium

b)

Mercury

c)

Sodium

d)

Copper

47.

Metals react with oxygen to form:

a)

Basic oxides

b)

Acidic oxides

c)

Neutral oxides

d)

None of these

48.

Which of the following statements is incorrect?

a)

Metals have lustre

b)

Metals are malleable

c)

Metals are good conductors of electricity

d)

Metals are poor conductors of heat

49.

Which of the following metals corrodes easily?

a)

Gold

b)

Silver

c)

Nickel

d)

Iron

50.

A __________reactive metal can displace a ________reactive metal from its salt solution.

(a)  

51.

When iron is exposed to moist air , a brown reddish coating is deposited on its surface. This process is called (a)   .

52.

(a)   , the hardest natural substance known, is an allotrope of carbon.

53.

Non-Metals generally have ____ boiling points.

a)

High

b)

Low

54.

Non-metals are insulators, this means electricity ______ flow through them.

a)

can

b)

cannot

55.

Where would you find a list of all of the Metals and Non-metals that scientists have discovered?

(a)  

56.
Which of these grouping of elements could have the characteristic of luster (shiny)?
a)
Metal
b)
Nonmetal
c)
metalloids
d)
Both metals and metalloids
57.
Which of these grouping of elements could have the characteristic of brittle?
a)
Metal
b)
Nonmetal
58.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
59.
One property of a nonmetals is that it is a good conductor of electricity?
a)
true
b)
false
60.
Metalloids are weak conductors of heat and electricity. 
a)
TRUE
b)
FALSE
61.
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
62.
Which type of elements touch the zigzag line?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Metals and Metalloids
63.
All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT —
a)
texture
b)
conductivity
c)
luster
d)
malleability
64.
The definition: Two or more atoms bonded together, representing the smallest unit of a chemical compound that can take part in a chemical reaction, best matches
a)
molecule
b)
atom
c)
mixture
d)
element
65.

Radioactive isotopes that can be

followed through the steps of a chemical

reaction or industrial process are called

a)

transformers

b)

tracers

c)

gamma rays

d)

reactants

66.

Which statement is NOT true of

radioactive decay?

a)

It involves the nucleus of an atom.

b)

It involves radioactive isotopes.

c)

The identity of the atom remains the same.

d)

Fast moving particles and energy are

released.

67.

Alpha and beta decay are almost

always accompanied by

a)

gamma radiation

b)

an increase in atomic number

c)

a decrease in atomic number

d)

a catalyst

68.

In relation to the original atom, the

atom that results from beta decay has an

atomic number that is

a)

1 less

b)

1 more

c)

2 less

d)

the same

69.

Uranium was the radioactive element studied by Becquerel and the Curies.

a)

True

b)

False

70.

The most penetrating type of nuclear radiation is the

alpha particle.

a)

true

b)

false

71.

The half-life of cobalt-60 is 5.26 years. After 10.52 years,

5 grams of a 20-gram sample will remain.

a)

true

b)

false

72.

During radioactive decay, the identity of an atom remains

the same.

a)

true

b)

false

73.

Alpha particles are fast-moving electrons given off during

radioactive decay.

a)

true

b)

false

74.

Chemical reactions involve the protons and neutrons in the

nucleus of an atom.

a)

True

b)

False

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