Periodic Table Trends

Physical Properties

Shiny

Silvery - white

Soft

Chemical Properties

low densities

low melting points

low boiling points

What we use Alkaline Earth Mteals for?

Key ingredient to make fireworks.

Describe the relationship observed for radius of the atom and melting points as you move around the periodic table

When going down the periodic table the elements with
a higher atomic number it will be easier

Physical properties

Colour - Pale yellow gas

Density of liquid at specific temperature

Low melting point

Chemical Properties

Very reactive

High in toxicity

Denser as you go down the table

What we use Halogens?

Dishes and etc.

The melting points decrease down the group because the metallic bonds are weaker for the larger elements. The atoms in a metal are held together by the attraction between the nuclei and the delocalized electrons.

Physical Properties

Shiny

Brittle

Good conductors

Chemical Properties

High ionization

electronegativity

Electron Affinity

What we use metalloids for?

Electronics and etc

Physical properties

Not sonorous

Brittle solids

Not lustrous

Chemical Properties

Not reactive with air in room temperature room

More reactive with metal more than non metals

Poor conductors of heat

What we use non - metals for?

Fertilizers

Physical Properties

Shiny

Soft

Silvery

Chemical Properties

Highly reactive at standard temperature

Highly Reactive at standard pressure

readily lose their outermost electron to form cations with a charge of +1

What we use Alkali metal for?

Table salt, atomic clocks and etc.

Describe the relationship observed for radius of the atom and melting points as you move around the periodic table

the melting point of the alkali metals decreases down the group. This is because as the ions get larger the distance between the bonding electrons and the positive nucleus gets larger and reduces the overall attraction between the two

why are the alkali metals so reactive to water and oxygen

Alkali metals are also known to react violently and explosively with water. This is because enough heat is given off during the Combustion reaction to ignite the H2(g) (Hydrogen).

Physical Properties

They can conduct Electricity in solid state

They can conduct electricity in Liquid state

They`re shiny when freshly cut

Chemical Properties

High hardness

High densities

Great strength

What we use Transition Metals for?

Tools and Vehicles

Describe the relationship observed for radius of the atom and melting points as you move around the periodic table

why are the transition metals so reactive to water and oxygen

Transition metals do not react as quickly with water or oxygen so do not corrode as quickly.

How would chemical reactivity affect how one might extract sodium and potassium metals?

They would use different method to extract the metals.
Metals more reactive than carbon, such as aluminium, are extracted by electrolysis(Electric Current)

Would you expect Al to be more reactive than Mg. Justify your answer.

No i would not be surprised If aluminum was more reactive than Magnesium. Magnesium is more reactive the aluminum

Which group would you expect to be more reactive: Group 16, Group 17, or Group 18 elements? Explain your reasoning.

Group 17 because the halogen elements have seven valence electrons, they only require one extra electron to form a full group. This characteristic makes them more reactive than other non-metal groups

Physical properties

Odorless

Colorless

Can Conduct electricity

Chemical Properties

Low chemical reactivity

Extreme stable

Non-Flammable

What we use Nobel Gases for?

Lamps and neon lights

Noble gases that are reactive to water and oxygen

Physical Properties

Lustrous

Ductile

Malleable

Chemical Properties

High Denisty

Some metals react with air and corride

Metals are in solid state in Room temperature

What we use metals for?

Bridges, building, or ships