Atomic Structure and Bonding Flashcards
(26 cards)
What is an element made up of
One kind of atom
What are molecules containing 2 atoms often described as
Diatomic
What is a compound
A substance formed when two or more elements have chemically joined
What is a mixture
A mix of substances that have not reacted together
What is filtration used for
To separate a solid from a liquid
What is evaporation used for
Used to separate a mixture of a dissolved solid in a liquid
What does soluble mean
A solid which will dissolve in water
What is insoluble
A solid which will not dissolve
What is a solution
A solid substance dissolves in a liquid
What is a solute
The solid which dissolves
What is a solvent
The liquid that does the dissolving
What is a dilute solution
Not very much solvent in the water
What is a concentrated solution
A lot of solute dissolved in the solution
What is a saturated solution
So much solute dissolved in the solution that no more can dissolve
Where are elements found
The periodic table
Where are the alkali metals
Group 1
Where are the halogens
Group 7
Where are the noble gases
Group 0
What is the block in the middle of the periodic table called
Transition metals
What are the two types of elements
Non-metal and metal
Are metals good conductors of electricity and heat
Yes
Are non-metals good conductors of electricity and heat
No
What can elements be classified as
Solid, liquids and gases
What does the atomic number tell us
The number of protons
