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Flashcards in Random Chem Cards Deck (5)
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1

What happens to the reactivity of each element in group 7 as you go down the group?

They become less reactive.

2

State three properties of transition metals.

Good conductors of heat.
Good conductors of electricity.
Strong and shiny.
Dense and malleable.
Positive ions.
High melting points (apart from mercury).
Can be magnetic and ductile.
Sonorous.

3

What are alloys?

Allots are made of a mixture of two metals but often have different properties to the original metals. They are harder than pure metals.

4

What do ionic substances/compounds form and when do they conduct electricity.

Giant ionic lattice structures and conduct electricity when melted or dissolved in water.

5

What are small/simple molecular structures made of? (Bonds)

They are made of molecules where atoms are joined together by strong covalent bonds but weak intermolecular forces.