Atoms and Elements
Atoms are made of Subatomic Particles
Molecules are multiple atoms that are connected Atom is just one
Atoms are not all the same!
How many Valence Electrons do theses atoms have? Boron Atom
How many Valence Electrons do theses atoms have?
Ions
When an Atom gains or loses an electron it becomes an ION! This Sodium ION is Positively charged because it lost 2 electrons.
This Chlorine ION is Negatively charged because it gained an electron.
Sharing electrons is called a covalent bond!
Sharing electrons is called a covalent bond!