Random Chem Cards Flashcards
(5 cards)
1
Q
What happens to the reactivity of each element in group 7 as you go down the group?
A
They become less reactive.
2
Q
State three properties of transition metals.
A
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
Q
What are alloys?
A
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
Q
What do ionic substances/compounds form and when do they conduct electricity.
A
Giant ionic lattice structures and conduct electricity when melted or dissolved in water.
5
Q
What are small/simple molecular structures made of? (Bonds)
A
They are made of molecules where atoms are joined together by strong covalent bonds but weak intermolecular forces.
