The Periodic Table and the Atom - Atoms, Elements and Compounds Flashcards
1
Q
What are all substances made out of
A
atoms
2
Q
an atom is the ____ part of an element that can exist
A
smallest
3
Q
What represents atoms of each element
A
chemical symbols
4
Q
Where are elements shown
A
in the periodic table
5
Q
How are compounds formed
A
compounds are formed from elements by chemical reactions
6
Q
What do chemical reactions ALWAYS involve
A
the creation of one or more new substances
7
Q
what do compounds contain
A
two or more elements chemically combined in fixed proportions
8
Q
how can you represent compounds
A
formulae using the symbols of the atoms from which they were formed
9
Q
what is the only way to separate compounds into elements
A
chemical reactions
