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Periodicity

Total questions: 20

Worksheet time: 16mins

Name
Class
Date
1.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
2.
Electronegativity is...
a)
how good an atom is at attracting 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. 
3.
Electronegativity __________ from left to right within a period and __________ from top to bottom within a group.
a)
decreases, increases 
b)
increases, increases
c)
increases, decreases 
d)
stays the same, increases
4.

Which of the following elements has the smallest atomic radius?

a)

Sulfur

b)

Chlorine

c)

Aluminum

d)

Sodium

5.

Which atom has the largest atomic radius?

a)

potassium

b)

calcium

c)

francium

d)

cesium

6.
The element with the largest electronegativity in the halogens is - 
a)
At
b)
F
c)
Cl
d)
Br
7.

The element with the lowest electronegativity in Period 3 is -

a)

Na

b)

Cl

c)

Ar

d)

Mg

8.
Atomic radius generally increases as we move __________.  
a)
down a group and from right to left across a period 
b)
up a group and from left to right across a period 
c)
down a group and from left to right across a period 
d)
up a group and from right to left across a period 
9.
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
10.

The trends on the periodic table are dependent on..

a)

how attracted a valence electron is to the nucleus

b)

how attracted valence electrons are to each other

c)

how attracted a valence electrons is to a non valence electron

d)

how attracted a non valence electron is to the nucleus

11.

What makes a valence electron more attracted to the nucleus?

a)

less distance between the nucleus and having less protons

b)

less distance between the nucleus and having more protons

c)

more distance between the nucleus and having less protons

d)

more distance between the nucleus and having more protons

e)

less distance and having more valence electrons

12.

The higher the ionization energy...

a)

the more attracted the valence electron is to the nucleus so it is harder to remove

b)

the less attracted the valence electron is to the nucleus so it is easier to remove

c)

the more attracted the valence electron is to another electron, so it is harder to remove

d)

the more repelled a valence electron is to another electron, so it is easier to remove

13.

Why does ionization energy decrease going down a group?

a)

Adding more energy levels makes the e- further from the nucleus so it is easier to remove

b)

There are more valence electrons in the outer shell so the e- is easier to remove

c)

There are more protons in the nucleus so the e- is easier to remove

d)

There are less protons in the nucleus so the e- is easier to remove

14.

Which is smaller... Mg or Mg2+ ?

a)

Mg because it gains an energy level

b)

Mg due to extra electron repulsion

c)

Mg2+ because of extra electron repulsion

d)

Mg2+ because it loses an energy level/shell

15.

Element Z has more protons than element Y, but both have 4 energy levels. Which statement is true?

a)

Y is smaller and would attract electrons more in a bond

b)

Y is bigger and would attract electrons more in a bond

c)

Z is smaller and would attract electrons more in a bond

d)

Z is bigger and would attract electrons more in a bond

16.

Nitrogen is a _ so it will _ electrons when forming an ion.

a)

metal, lose

b)

metal, gain

c)

nonmetal, lose

d)

nonmetal, gain

17.

Nitrogen will gain _ e- to have a charge of _.

a)

5 , -5

b)

3, +3

c)

3, -3

d)

5, +5

18.

A full valence shell is considered having _ e-.

a)

0

b)

2

c)

6

d)

8

19.
In which of the following pairs is the first atom larger than the second atom?
a)
K, Ca
b)
Ne, Ar
c)
CI, P
d)
O, S
20.
An element X is a solid with a high melting point. X conducts electricity but is brittle. Which of the following elements is most likely to be X?
a)
Carbon
b)
Sodium
c)
Magnesium
d)
Neon

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