b) elements with similar properties are placed in the same vertical columns called groups

Question 1

What are vertical columns in the periodic table called?

Answer 1

Groups

Question 2

True or False: Elements in the same group have similar chemical properties.

Answer 2

True

Question 3

Fill in the blank: Elements with similar properties are placed in the same vertical columns called ______.

Answer 3

groups

Question 4

What is the significance of a group in the periodic table?

Answer 4

Elements in a group have similar valence electron configurations.

Question 5

How many main groups are there in the periodic table?

Answer 5

There are 18 main groups.

Question 6

Which group contains the alkali metals?

Answer 6

Group 1

Question 7

What type of elements are found in Group 2?

Answer 7

Alkaline earth metals

Question 8

True or False: All elements in a group react similarly with water.

Answer 8

False

Question 9

What group is known for having noble gases?

Answer 9

Group 18

Question 10

Which group contains the halogens?

Answer 10

Group 17

Question 11

What property do elements in the same group typically share?

Answer 11

They have the same number of valence electrons.

Question 12

Which group is characterized by the presence of transition metals?

Answer 12

Groups 3 to 12

Question 13

Fill in the blank: The elements in Group 1 are highly ______.

Answer 13

reactive

Question 14

True or False: The periodic table is organized primarily by atomic mass.

Answer 14

False

Question 15

What is the general trend of reactivity in Group 1 as you move down the group?

Answer 15

Reactivity increases.

Question 16

What defines the lanthanides and actinides in the periodic table?

Answer 16

They are separate from the main body of the periodic table and include rare earth and radioactive elements.

Question 17

Which group contains elements that are typically good conductors of electricity?

Answer 17

Transition metals (Groups 3 to 12)

Question 18

What is the common characteristic of elements in Group 16?

Answer 18

They are known as chalcogens.

Question 19

Which group is known for having metals that can form multiple oxidation states?

Answer 19

Transition metals

Question 20

True or False: All elements in a group are metals.

Answer 20

False

Question 21

What is the primary characteristic of noble gases?

Answer 21

They are inert and do not readily react with other elements.

Question 22

What do the group numbers in the periodic table indicate?

Answer 22

The number of valence electrons in the outermost shell of the elements.

Question 23

Which group is known for having elements that are highly electronegative?

Answer 23

Group 17 (Halogens)

Question 24

Fill in the blank: The elements in Group 14 are known as ______.

Answer 24

carbon group elements

Question 25

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

Answer 25

Atomic size increases.

Question 26

What is the effect of increasing atomic number on the reactivity of alkali metals?

Answer 26

Reactivity increases.

Question 27

Which group contains the element oxygen?

Answer 27

Group 16

Question 28

True or False: All elements in the same group have the same physical state at room temperature.

Answer 28

False

Question 29

What type of bonding is common among elements in Group 17?

Answer 29

Covalent bonding

Question 30

What is a common use for noble gases?

Answer 30

They are used in lighting and welding.

Question 31

Which two groups are primarily composed of nonmetals?

Answer 31

Groups 14 (Carbon group) and 17 (Halogens)

Question 32

What is the relationship between group number and chemical reactivity?

Answer 32

Elements in the same group tend to react similarly due to having the same number of valence electrons.

Question 33

Fill in the blank: Transition metals are found in groups ______.

Answer 33

3 to 12

Question 34

What is the role of valence electrons in determining the properties of elements in a group?

Answer 34

Valence electrons determine how an element reacts and bonds with other elements.

Question 35

True or False: The periodic table is arranged in order of increasing atomic number.

Answer 35

True

Question 36

Electronic Configuration

Answer 36

The arrangement of electrons in an atom's electron shells, which determines the chemical properties of the element.

Question 37

Atomic Number

Answer 37

The regions around the nucleus of an atom where electrons are likely to be found, generally categorized into principal energy levels.

Question 38

Hydrogen

Answer 38

The lightest element with atomic number 1, having an electron configuration of 1, which means it has one electron in its outer shell.

Question 39

Helium

Answer 39

A noble gas with atomic number 2, characterized by a complete electron configuration of 2, meaning it has two electrons in its outer shell.

Question 40

Hydrogen

Answer 40

The lightest element with atomic number 1, having an electron configuration of 1, which means it has one electron in its outer shell.

Question 41

Helium

Answer 41

A noble gas with atomic number 2, characterized by a complete electron configuration of 2, meaning it has two electrons in its outer shell.

Question 42

Lithium

Answer 42

The third element in the periodic table with atomic number 3 and an electron configuration of 2,1, indicating two electrons in the first shell and one in the second.

Question 43

Beryllium

Answer 43

The fourth element with atomic number 4, which has an electron configuration of 2,2, indicating a filled first and second electron shell.

Question 44

Boron

Answer 44

The fifth element in the periodic table with atomic number 5 and an electron configuration of 2,3, meaning it has three electrons in its outer shell.

Question 45

Carbon

Answer 45

An essential element with atomic number 6, possessing an electron configuration of 2,4, indicating four electrons in its outer shell, crucial for organic chemistry.