elements and atoms Flashcards
1
Q
atom
A
The smallest part of an element that can exist.
2
Q
chemical formula
A
A formula that shows the relative number of atoms of each element in a compound.
3
Q
chemical symbol
A
A one- or two-letter code for an element that is used by scientists in all countries.
4
Q
compound
A
A substance made up of atoms of two or more elements, strongly joined together.
5
Q
element
A
A substance that cannot be broken down into other substances.
6
Q
molecule
A
A group of two or more atoms, strongly joined together.
7
Q
Periodic Table
A
A table of all the elements, in which elements with similar properties are grouped together.
