PERIODICITY

Question 1

True or False: The reactivity of Group 2 elements increases as you move down the group.

Answer 1

True

Question 2

Fill in the blank: The first element in Group 2 is ___.

Answer 2

Beryllium

Question 3

What is the trend in ionization energy for Group 2 elements as you go down the group?

Answer 3

Ionization energy decreases.

Question 4

Which Group 2 element has the highest melting point?

Answer 4

Beryllium

Question 5

Which element in Group 2 reacts vigorously with water?

Answer 5

Calcium

Question 6

What is the trend in electronegativity for Group 2 elements as you move down the group?

Answer 6

Electronegativity decreases.

Question 7

True or False: Magnesium is less reactive than calcium.

Answer 7

True

Question 8

What type of compounds do Group 2 elements typically form?

Answer 8

Ionic compounds

Question 9

What is the general trend of atomic radius in Period 3 elements?

Answer 9

The atomic radius decreases from left to right.

Question 10

True or False: Sodium has a larger atomic radius than chlorine.

Answer 10

True

Question 11

Which Period 3 element has the highest electronegativity?

Answer 11

Chlorine

Question 12

Fill in the blank: The first element in Period 3 is ___.

Answer 12

Sodium

Question 13

What is the trend in ionization energy for Period 3 elements as you move from left to right?

Answer 13

Ionization energy increases.

Question 14

Which element in Period 3 is a metalloid?

Answer 14

Silicon

Question 15

What is the trend in melting points for Period 3 elements?

Answer 15

Melting points vary, with metals generally having higher melting points than nonmetals.

Question 16

True or False: Argon is a reactive gas.

Answer 16

False

Question 17

What type of bonding is primarily found in Period 3 compounds?

Answer 17

Covalent bonding

Question 18

Which Period 3 element reacts with water to form hydrogen gas?

Answer 18

Sodium

Question 19

What is the trend in metallic character for Period 3 elements?

Answer 19

Metallic character decreases from left to right.

Question 20

Fill in the blank: The last element in Period 3 is ___.

Answer 20

Argon

Question 21

What is the primary use of magnesium in industry?

Answer 21

As an alloying agent.

Question 22

True or False: All Group 2 metals react with dilute acids.

Answer 22

True

Question 23

What is the trend in the solubility of Group 2 hydroxides as you move down the group?

Answer 23

Solubility increases.

Question 24

Which element in Period 3 is a gas at room temperature?

Answer 24

Argon

Question 25

What is the trend in the atomic mass of Group 2 elements as you move down the group?

Answer 25

Atomic mass increases.

Question 26

Fill in the blank: The compound formed when magnesium reacts with oxygen is called ___.

Answer 26

Magnesium oxide

Question 27

Which Group 2 element is commonly used in the production of cement?

Answer 27

Calcium

Question 28

What is the trend in the behavior of Group 4 elements as you move down the group?

Answer 28

The nonmetallic character decreases and metallic character increases.

Question 29

True or False: Silicon is more electronegative than phosphorus.

Answer 29

True

Question 30

What type of bonding is predominant in Group 4 compounds?

Answer 30

Covalent bonding

Question 31

What is the trend in the boiling points of Group 4 elements?

Answer 31

Boiling points increase down the group.

Question 32

Fill in the blank: The first element in Group 4 is ___.

Answer 32

Carbon

Question 33

What is the general trend of ionization energy in Group 4 as you move down the group?

Answer 33

Ionization energy decreases.

Question 34

State of chlorine at room temp

Answer 34

yellow green gas

Question 35

state of bromine at room temp

Answer 35

liquid

Question 36

state of iodine at room temp

Answer 36

solid