04.10.25 Group 0 +transition metals

Group 7 elements are also called

Halogens

what is a covalent bond

sharing pairs of electrons

In noble gases the melting points … from top to bottom

Increase

Inert is another word for

Unreactive.

chemically unreactive

(it doesn’t mean they dont react at all it just doesn’t happen often)

noble gases boiling points … as atomic mass increases.

Increases

Helium and neon never…

Take part in chemical reactions

Noble gases have… points

Low melting and boiling points

Group 7 reactions get …. vigorous from top to bottom

Less

OILRIG stands for…

Oxidation is Less. Reduction is Gain.

(of electrons)

Halogens are on the … of the stepped line

right

this makes them non metals

Density…. down the noble gases group

Increases

All noble gases have full…

Outer shells

Group 0 elements are called

Noble gases

Noble gases have a … melting and boiling points

Low

Why are noble gases called noble gase?

Because they are unreactive

Because they have a full outer shell

It doesn't need to react

List of noble gases top to bottom👅

Heliumm » He

Neon » Ne

Argon » Ar

Krypton » Kr

Xenon » Xe

Radon » Rn

Non metals have…

Low melting + boiling points

Non metals joined together is…

Covalent bond

Group 7 elements are also called

Halogens

what is a covalent bond

sharing pairs of electrons

In noble gases the melting points … from top to bottom

Increase

Inert is another word for

Unreactive.

chemically unreactive

(it doesn’t mean they dont react at all it just doesn’t happen often)

noble gases boiling points … as atomic mass increases.

Increases

Helium and neon never…

Take part in chemical reactions

Noble gases have… points

Low melting and boiling points

Group 7 reactions get …. vigorous from top to bottom

Less

OILRIG stands for…

Oxidation is Less. Reduction is Gain.

(of electrons)

Halogens are on the … of the stepped line

right

this makes them non metals

Density…. down the noble gases group

Increases

All noble gases have full…

Outer shells

Group 0 elements are called

Noble gases

Noble gases have a … melting and boiling points

Low

Why are noble gases called noble gase?

Because they are unreactive

Because they have a full outer shell

It doesn't need to react

List of noble gases top to bottom👅

Heliumm » He

Neon » Ne

Argon » Ar

Krypton » Kr

Xenon » Xe

Radon » Rn

Non metals have…

Low melting + boiling points

Non metals joined together is…

Covalent bond

Describe the states of chlorine, bromine, and iodine at room temperature.

Chlorine: gas. Bromine: liquid. Iodine: solid.

Why does the reactivity of halogens decrease down Group 7?

As you go down Group 7, the atomic radius increases, and the outer electrons are further from the nucleus. This reduces the attraction from the nucleus, making it harder for the atom to gain an electron to form a negative ion.

Give one common use for Helium and Argon.

Helium: filling balloons, blimps (due to low density and non-flammability). Argon: filling light bulbs (to prevent filament oxidation).

What is the stable electron configuration for noble gases (except Helium)?

They have 8 electrons in their outermost electron shell.

What holds simple molecular substances (like water or carbon dioxide) together?

Weak intermolecular forces (IMFs) between the molecules.

What type of bonds exist within each molecule of a simple molecular substance?

Strong covalent bonds.

Room temperature iss…

25 degrees