Free Printable Ch.2 Review

1.

Which sublevel can hold a maximum of 6 electrons?

a)

s

b)

p

c)

d

d)

f

2.

What is the symbol for an electron in a Lewis dot structure?

a)

A circle

b)

A dot

c)

A dash

d)

A square

3.

Which scientist proposed the model of the atom with electrons in specific energy levels?

a)

Dalton

b)

Bohr

c)

Rutherford

d)

Thomson

4.

What is the general electron configuration for alkali metals?

a)

$ns^1$

b)

$ns^2$

c)

$ns^2np^6$

d)

$ns^2np^5$

5.

Which orbital type is spherical in shape?

a)

s

b)

p

c)

d

d)

f

6.

Which of the following elements has the electron configuration $1s^2 2s^2 2p^6 3s^2 3p^5$ ?

a)

Neon

b)

Chlorine

c)

Sodium

d)

Argon

7.

Arrange the following elements in order of increasing atomic radius: Na, Mg, Al.

a)

Na < Mg < Al

b)

Al < Mg < Na

c)

Mg < Al < Na

d)

Na < Al < Mg

8.

Which of the following ions has the same electron configuration as neon?

a)

$Na^+$

b)

$F^-$

c)

$O^{2-}$

d)

All of the above

9.

What is the electron configuration for the $Fe^{2+}$ ion?

a)

$[Ar] 4s^2 3d^4$

b)

$[Ar] 3d^6$

c)

$[Ar] 4s^2 3d^6$

d)

$[Ar] 3d^4$

10.

Which of the following best explains why ionization energy increases across a period?

a)

Increased shielding

b)

Increased nuclear charge

c)

Decreased number of protons

d)

Decreased electron affinity

11.

Given the electron configuration $1s^2 2s^2 2p^6 3s^2 3p^6 4s^1$ , identify the element and explain its position in the periodic table.

a)

Potassium; Group 1, Period 4

b)

Calcium; Group 2, Period 4

c)

Sodium; Group 1, Period 3

d)

Magnesium; Group 2, Period 3

12.

Predict which of the following ions will have the largest radius: $Na^+$ , $Mg^{2+}$ , $Al^{3+}$ , $O^{2-}$ .

a)

$Na^+$

b)

$Mg^{2+}$

c)

$Al^{3+}$

d)

$O^{2-}$

13.

A neutral atom has the electron configuration $[Ne] 3s^2 3p^3$ . What is the Lewis dot symbol for its most common ion?

a)

Five dots around the symbol

b)

Three dots around the symbol

c)

Eight dots around the symbol with a $3-$ charge

d)

No dots, with a $3+$ charge

14.

Which of the following best describes the relationship between electron configuration and the periodic table?

a)

Elements in the same period have the same number of valence electrons

b)

Elements in the same group have similar valence electron configurations

c)

All elements in a group have the same atomic number

d)

Elements in the same period have similar chemical properties

15.

Which of the following statements about d orbitals is correct?

a)

d orbitals can hold a maximum of 10 electrons

b)

d orbitals are spherical in shape

c)

d orbitals are found in the first energy level

d)

d orbitals can hold a maximum of 6 electrons

16.

Which element has the highest first ionization energy among the following?

a)

Lithium

b)

Sodium

c)

Potassium

d)

Rubidium

17.

What is the electron configuration for the $Cl^-$ ion?

a)

$1s^2 2s^2 2p^6 3s^2 3p^5$

b)

$1s^2 2s^2 2p^6 3s^2 3p^6$

c)

$1s^2 2s^2 2p^6 3s^2 3p^4$

d)

$1s^2 2s^2 2p^6 3s^2 3p^3$

18.

Which of the following best explains why $F^-$ is larger than $F$ ?

a)

$F^-$ has more protons

b)

$F^-$ has more electrons, increasing electron-electron repulsion

c)

$F^-$ has fewer energy levels

d)

$F^-$ has a higher nuclear charge

19.

Which of the following is the correct order of filling for atomic orbitals according to the Aufbau principle?

a)

1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p

b)

1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p

c)

1s, 2s, 2p, 3s, 3p, 4p, 3d, 4s

d)

1s, 2s, 3s, 2p, 3p, 4s, 3d, 4p

20.

Which of the following best describes the trend in electronegativity across a period?

a)

It decreases from left to right

b)

It increases from left to right

c)

It remains constant

d)

It increases and then decreases

21.

As you move across the periodic table, electronegativity increases.

As you move down the periodic table, electronegativity decreases.

Which of the following has the largest electronegativity?

2. Bromine or Chlorine?
3. Beryllium or Lithium?
4. Gallium or Aluminum?
5. Tin (Sn) or Antimony (Sb)?

A

B

C

D

E

F

G

H

Ch.2 Review_CH090

Total questions: 21

Worksheet time: 12mins

Similar Resources on Wayground