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Unit 3: Periodic Table

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.
A single horizontal row in the periodic table is called a_________________.
a)
group
b)
period
c)
graph
d)
density
2.
Today’s periodic table arranges the elements by increasing ____________ in such a way that similar properties repeat at periodic intervals.
a)
Representative Elements
b)
transition elements
c)
atomic numbers
d)
groups
3.
___________ are a group of gases that are very unreactive and do not normally combine with other elements.
a)
oxygen
b)
hydrogen
c)
transition gases
d)
noble gases
4.

Who created the first valid periodic table of the elements arranged by atomic mass?

a)

Henry Moseley

b)

Dmitri Mendeleev

c)

Albert Einstein

d)

Isaac Newton

5.

Group 1 is also called

a)

halogens

b)

alkaline earth metals

c)

alkali metals

d)

noble gases

6.

Group 2 is also called

a)

halogens

b)

alkaline earth metals

c)

alkali metals

d)

noble gases

7.

Group 17 is also called

a)

halogens

b)

alkaline earth metals

c)

alkali metals

d)

noble gases

8.

Group 18 is also called

a)

halogens

b)

alkaline earth metals

c)

alkali metals

d)

noble gases

9.

Elements that are conductive, lustrous, and have a high melting point

a)

metals

b)

non-metals

c)

metalloids

10.

Elements that are poor conductors, dull, and have a low melting point

a)

metals

b)

non-metals

c)

metalloids

11.
Scientist who first grouped the elements in groups of threes (triads).
a)
Johann Dobereiner
b)
John Newlands
c)
Demitri Mendeleev
d)
Henry Mosely
12.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
13.
The yellow atoms are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
14.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
15.
Beryllium is in group number______.
a)
Group 2
b)
Group 3
c)
Group 4
d)
Group 7
16.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
17.

What period and group is Silver (Ag)?

a)

Period 2, Group 1

b)

Period 3, Group 16

c)

Period 5, Group 11

d)

Period 2, 14

18.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
19.
In what section would Transition Metals be found?
a)
purple
b)
light blue
c)
yellow
d)
red
20.
Which section are the metals in? 
a)
dark blue
b)
light blue
c)
purple
d)
pink
21.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
22.
As you move down a group, atomic radius increases because - 
a)
you add more and more neutrons
b)
you add more and more protons
c)
you add more and more shells (energy levels)
d)
you add more atomic mass
23.
Which of the following will have a lower ionization energy than Scandium (Sc)?
a)
Helium (He)
b)
Titanium (Ti)
c)
Calcium (Ca)
d)
Magnesium (Mg)
24.
Electronegativity is...
a)
the ability of an atom to attract/ accept electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
25.

How many valence electrons are in an atom of K?

a)

3

b)

8

c)

4

d)

1

26.

How many valence electrons are in an atom of Ar?

a)

2

b)

8

c)

4

d)

1

27.
As you move across the periodic table atoms tend to get smaller because, ______________.
a)
the atoms have more mass.
b)
the atoms have less mass
c)
the atoms have more protons.
d)
the atoms have less electrons.
28.
As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....
a)
decreases
b)
increases
c)
remains the same
d)
none of the above
29.
The ionization potential of an element is the amount of energy required to remove an electron from an isolated atom or molecule. According to the periodic table, which of the following indicates the correct decreasing order of ionization energy?
a)
Li > Na > K > Cs
b)
Na > K > Li > Cs
c)
Li > K > Na > Cs 
d)
Cs > K > Na > Li 
30.

Which scientist grouped the elements by their atomic masses by the Law of Octaves?

a)

Johann Dobereiner

b)

J.A.R. Newlands

c)

Demitri Mendeleev

d)

Henry Mosely

31.

Which scientist grouped the elements by increasing atomic number?

a)

Johann Dobereiner

b)

J.A.R. Newlands

c)

Demitri Mendeleev

d)

Henry Mosely

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