Chemistry | The Periodic Table ⚛️

Physical properties of alkali metals (group 1)

- Soft and can be cut easily 🔪

- Low melting and boiling points ❄️

- Low densities

Chemical properties of alkali metals (group 1)

- Highly reactive 💥

- Reactivity increases down the group 📈

Physical properties of halogens (group 17)

- Low melting and boiling points ❄️

- Coloured 🎨

Chlorine rtp

Yellow-green gas

Bromine rtp

Red-brown liquid

Iodine rtp

Purple-black solid 💜

Displacement reaction 😰

When one element takes the place of another element in the compound 😈

Chemical properties of halogens

- Reactive non-metals (readily gain an electron [+]) 💥

- Reactivity of halogens decreases down the group 📉

- Exist as diatomic molecules 👯‍♀️

Noble gases

- Monoatomic non-metals 💃

- Colourless gases at room temperature

- Low melting and boiling points ❄️

- Insoluble in water 🚫💦

- Unreactive

#nonchalant #INERT ATMOSPHERE

Properties of transition metals

- High melting points 🔥

- High densities 💪

- Variable oxidation states ⚖️

Chromium (III) chloride

CrCl3 [+3]

green 💚

iron (ii) sulfate

FeSO4 [+2]

pale green, liquid

manganese (IV) oxide

MnO2 [+4]

brown-black powder

copper (i) oxide

Cu2O [+1]

red powder ❤️

potassium dichromate (VI)

K2Cr2O7

orange

iron (III) chloride

FeCl3

yellow 💛

potassium manganate (VII)

KMnO4

purple 💜

copper (ii) oxide

CuO

black powder

Catalyst

A substance that increases the rate of a chemical reaction‍♂️ and remains chemically unchanged at the end of the reaction