W4 Flashcards
Are mineral ores natural?
Yes.
What is relative molar mass?
Sum of atomic mass in a molecule.
What’s a mineral?
A naturally occurring element/compound, like a rock.
Whats the electronegativity like in metals?
Low.
Can layers slide over each other easily in a metal lattice?
Yes.
Are metals with smaller grains harder or softer?
Harder and stronger.
Crystal lattices vary depending on what?
The size of their metal ions.
What type of ions to metals form when then react?
Positive ions, cations.
How do you make an element stable?
By ensuring the outer shell is full.
Why do you store some metals in oil?
To prevent a reaction with the moisture in the air.
When metals react with steam, what do they produce?
An oxide.
When metals react with water, what do they produce?
A hydroxide.
What’s it called when metals are heated and react with oxygen in the air?
Oxidation.
What are the compounds that are produced when metals react with oxygen called?
Metal oxides.
What is the product of metals reacting with acids?
Metal oxides.
