14. Metals Flashcards
What is metallic bonding?
( LO 1)
The attraction between positive ions and delocalised electrons
Why do metals conduct electricity?
( LO 2)
The (outer) electrons are delocalised and free to flow between outer shells
What are the 3 reactions of metals?
( LO 3)
With oxygen
With water
With acid
What is the product of reacting metals with oxygen?
A metal oxide
What are the products of reacting metals with water?
( LO 3b )
A metal hydroxide plus hydrogen
What are the products of reacting metals with acids?
( LO 3c )
A salt plus hydrogen
How many electrons do metal lose?
The number of outer electrons they have
What charge is on metal ions?
The positive charge equivalent to the number of electrons they have lost.
How does the reactivity of metals affect their reactions with water, acids, and oxygen?
( LO 4 )
How are soluble salts made using metals?
( LO 5 )
What is meant by oxidation?
( LO 6b )
The loss of electrons
Why do metals lose electrons when they react?
To obtain a full valence shell
What do we call naturally occurring metal compounds?
Ores
What are the 3 ways of extracting metals from ores?
Electrolysis ( Al and above)
Heating with carbon ( Cu to Mg)
Heating ( Below Cu)
What type of bonding is found in almost all metallic compounds?
Ionic bonding
What are the 3 methods of extracting metals and which metals can be extracted by each method?
