Periodic Table

Question 1

What are the differences between Metals, Non - Metals and Metalloids?

Answer 1

Metals

Solids at room temperature
Shiny
Good conductors
Malleable

METALLOIDS

Share some properties with metals and some properties with non-metals.

Nonmetals

Gases and Solids at room temperature
Not shiny
Bad/poor conductors
Brittle

Question 2

What is a Period (Row)?

Answer 2

Tell us the number of ELECTRON SHELLS

Question 3

What is a Family/Group (Column)?

Answer 3

Tell us the number of VALENCE ELECTRONS
(electrons in the outer shell)

Question 4

What are some properties of the Periodic Table?

Answer 4

A vertical column in the periodic table is called a group (numbered 1-18 from left to right). A group is also referred to as a family, as the elements within a group share similar physical and chemical properties. Some of these families have special names due to their unique characteristics.

For example:
- Alkali Metals (Group 1) are highly reactive metals.
- Alkaline Earth Metals (Group 2) are also reactive, though less so than alkali metals.
- Halogens (Group 17) are very reactive nonmetals.
- Noble Gases (Group 18) are inert and rarely form compounds.

These names help to categorize the elements based on their common traits.

Question 5

What are Alkali Metals?

Answer 5

Group 1

Silver-grey (shiny)
All reactive
Conductive of electricity
Solid at room temperature
1 valence electrons

Question 6

What are Alkaline Earth Metals?

Answer 6

Group 2

Silver-grey (shiny)
Medium reactive (not as reactive as group 1)
Conductive of electricity
Solid at room temperature
2 valence electrons

Question 7

What are Halogens?

Answer 7

Group 17 (7A)

Most reactive nonmetals
Insulators (do not let electricity to pass through them)
Solid at room temperature
7 valence electrons

Question 8

What are Noble Gases?

Answer 8

Group 18 (8A)

Colourless
Unreactive
Insulators (do not let electricity to pass through them)
Gas at room temperature
8 valence electrons

Question 9

What are Transition Metals?

Answer 9

Shiny metals
Some unique properties
Good conductors of heat and electricity

Question 10

What are Lanthanide/Actinide Series?

Answer 10

Fit “in” the periodic table but placed underneath to save space
Lanthanides: rare earth metals
Actinides: radioactive