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Ionization energy

Total questions: 12

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following equations represents the first ionization energy of an element X?

a)

X(g) + ee^-   \rightarrow    X+X^+  (g)

b)

X+(g)X^+\left(g\right)  + ee^-   \rightarrow  X(g)

c)

X(g) \rightarrow   X+(g)X^+\left(g\right)  + ee^-  

2.

Which element in the pair of adjacent elements, Mg and Na,has a higher first ionization energy?

a)

Na

b)

Mg

3.

An element, X,from the 3rd period of the periodic table has a second ionization energy that is higher than that of the neighboring two elements.

What is the electronic configuration of element X?

a)

1s22s22p63s23p61s^22s^22p^63s^23p^6  

b)

1s22s22p63s13p51s^22s^22p^63s^13p^5  

c)

1s22s22p63s21s^22s^22p^63s^2  

d)

1s22s22p63s23p11s^22s^22p^63s^23p^1  

4.

Which of the following is the correct descending order for ionisation energy?

a)

N, O, S, P

b)

N, O, P, S

c)

O, N, P, S

d)

P, S, N, O

5.

Which of the following factors does not directly influence the ionization energy of an atom?

a)

Atomic radii

b)

Nuclear charge

c)

Shielding effect

d)

Neutrons

6.

Which of the following options will complete the follwing sentence?

Firsts Ionization energy is the energy required to _______  one mole of electron from one mole of ________ atom at ground state.

a)

Add, gaseous

b)

remove, solid

c)

remove, gaseous

d)

add, solid

7.
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.
8.

Which statement correctly and completely identifies a trend?

a)

Atomic radius decreases across a period and increases down a group.

b)

Electronegativity decreases across a period and decreases down a group.

c)

Ionization energy increases across a period and increases down a group.

d)

Ionic radius increases across a period and increases down a group.

9.
Which of the following is true about a sulfur atom and a chlorine atom?
a)
Sulfur is larger and has higher ionization energy.
b)
Sulfur is larger and has lower ionization energy.
c)
Sulfur is smaller and has higher ionization energy.
d)
Sulfur is smaller and has lower ionization energy.
10.

Which of the following electron configurations gives rise to the largest increase between the second and third ionisation energies?

a)

1s2s2p2

b)

1s2s2p3s1

c)

1s2s2p3s2

d)

1s2s2p1

11.

Which element can have the following ionization energies: 250, 500, 2500, 2800?

a)

K

b)

Mg

c)

O

d)

F

12.

Where is there a big jump of ionization energy increase for successive ionizations of the element Silicon(Si)?

a)

between 1 and 2

b)

between 6 and 7

c)

between 7 and 8

d)

between 4 and 5