Periodic Table

Question 1

What is a group in the periodic table?

Answer 1

A group is a vertical column of elements in the periodic table that share similar chemical properties.

Question 2

What is a period in the periodic table?

Answer 2

A period is a horizontal row of elements in the periodic table.

Question 3

How many groups are there in the periodic table?

Answer 3

There are 18 groups in the periodic table.

Question 4

How many periods are there in the periodic table?

Answer 4

There are 7 periods in the periodic table.

Question 5

True or False: Elements in the same group have the same number of valence electrons.

Answer 5

True.

Question 6

What is the main characteristic of alkali metals found in Group 1?

Answer 6

Alkali metals are highly reactive and have one valence electron.

Question 7

Which group contains the noble gases?

Answer 7

Group 0 contains the noble gases.

Question 8

Fill in the blank: The elements in Group 1 are known as __________.

Answer 8

alkaline metals.

Question 9

What is the general trend of atomic size as you move down a group?

Answer 9

Atomic size increases as you move down a group.

Question 10

What happens to the reactivity of nonmetals as you move from left to right across a period?

Answer 10

The reactivity of nonmetals increases from left to right across a period.

Question 11

Which group is known for having elements that are very reactive and form salts?

Answer 11

Group 17, known as the halogens.

Question 12

True or False: Transition metals are found in the d-block of the periodic table.

Answer 12

True.

Question 13

What is the trend for ionization energy as you move across a period?

Answer 13

Ionization energy generally increases as you move from left to right across a period.

Question 14

Short Answer: What do elements in the same period have in common?

Answer 14

Elements in the same period have the same number of electron shells.

Question 15

What is the primary characteristic of elements in Group 1?

Answer 15

Low melting points, soft metals

Question 16

Fill in the blank: The lanthanides and actinides are part of the __________ series.

Answer 16

f-block.

Question 17

Which group contains the most reactive metals?

Answer 17

Group 1 contains the most reactive metals, known as alkali metals.

Question 18

True or False: All noble gases are colorless and odorless.

Answer 18

True.

Question 19

What is the trend in electronegativity as you move across a period?

Answer 19

Electronegativity generally increases as you move from left to right across a period.

Question 20

What is the significance of the zigzag line in the periodic table?

Answer 20

The zigzag line separates metals from nonmetals.

Question 21

What elements are found in Group 14?

Answer 21

Group 14 contains carbon, silicon, germanium, tin, lead, and flerovium.

Question 22

Fill in the blank: The group known for having a full outer shell and being inert is the __________.

Answer 22

noble gases.

Question 23

Which element is at the top of Group 16?

Answer 23

Oxygen is at the top of Group 16.

Question 24

True or False: Metals tend to lose electrons and form positive ions.

Answer 24

True.

Question 25

What is the most common use of the transition metals?

Answer 25

They are commonly used as catalysts and in alloys.

Question 26

What determines the placement of an element in a specific group and period?

Answer 26

The number of valence electrons and the number of electron shells determine the placement.