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Periodic Trends

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.
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
2.

The atom with the largest atomic radius in Period 4 is - 

a)
K
b)
Kr
c)
Fe
d)
Fe
3.

Cesium (Cs) has the lowest ionization energy in Group 1 because - 

a)

it has the smallest number of valence electrons

b)
it has the greatest atomic mass
c)
it has the greatest number of protons, so it attracts its electrons the strongest
d)
its 1 valence electron is very far from the nucleus, so little energy is needed to remove it
4.

Of the halogens, which has the smallest radius?

a)

F

b)

Br

c)

He

d)

At

5.

Which of the following halogens has the greatest electronegativity?

a)

Chlorine (Cl)

b)

Bromine (Br)

c)

Iodine (I)

d)

Astatine (At)

6.

What is the amount of energy required to remove an electron from an atom?

a)

atomic energy

b)

ionization energy

c)

ionic energy

d)

electron energy

7.

What is one-half the distance between the nuclei of identical atoms that are bonded together?

a)

atomic radius

b)

atomic diameter

c)

atomic width

d)

atomic length

8.

What is a measure of the tendency of an atom to attract a bonding pair of electrons when the atom is in a compound?

a)

ionization energy

b)

electropositivity

c)

electronegativity

d)

electron energy

9.

What is a vertical (up and down) column in the periodic table?

a)

group or family

b)

period

c)

periodic law

d)

octet rule

10.

Elements in the same column of the periodic table always have the same number of _______ as one another.

a)
Protons
b)
Neutrons
c)
Electrons
d)
Valence Electrons
11.
Rows on the period table are called _____ while columns are called _____.
a)
groups, families
b)
groups, periods
c)
periods, groups
d)
families, groups
12.
The Modern Periodic Table of Elements is arranged by
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
13.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
14.

Which has the greater electronegativity Cl or Al?

a)
Cl
b)
Al
15.
Ionization energy is...
a)
the energy required to add an electron to a specific atom
b)
how much energy it takes to remove an electron from an atom
c)
the energy required to shield the outer electrons from the nucleus
d)
a measure of the ability of an atom to attract electrons
16.
Most of the elements on the periodic table are classified as _____.
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Periods
17.

Copper is a common metal. Which of the following properties does this metal most likely have?

a)

High conductivity, high malleability, and low luster

b)

Low conductivity, low malleability, and low luster

c)

High conductivity, high malleability, and high luster

d)

Low conductivity, high malleability, and high luster

18.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
19.
How are elements on the periodic table arranged by?
a)
in alphabetic order
b)
simular physical & chemical properties
c)
their symbols
d)
Just simular physical properties
20.
Each column in the periodic table is called a _________ .
a)
period
b)
group
c)
cluster
d)
unit
21.

Elements in the same group have : (Choose 2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

22.

Name this group: These metals are the most reactive.

a)
b)
c)
d)
23.

These two elements have similar chemical properties to Barium (Ba).

a)

Ca and Ra, because they are in the same group.

b)

Cs and La, because they are in the same period number.

c)

Ca and Y, because they are 90 degree angle.

24.
How did Mendeleev arrange the elements?
a)

by alphabetical 

b)

by density

c)

by melting point

d)

by atomic mass

25.

______arranged elements in a periodic table according to the increasing order of atomic number

a)

John Newlands

b)

Dimitri Mendeleev

c)

Henry Mosely

d)

Lothar Mayer

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