symbols
Elements are made of 1 type of atom and these are used to represent elements....one type of atom...one capital letter!
formulas
These are used to represent compounds and show what elements are in the compound
Ionic bonds
These bonds form when metals react with nonmetals. Electrons are transferred from metals to nonmetals
Covalent bonds
These bonds form when 2 or more nonmetals bond and they share electrons.
subscripts
Small number in a formula shows the number of atoms for that element
Diatomic molecules
All atoms of the molecules are the same Example :N2
shared
In covalent bonds electrons are __________
NaCl
Table Salt
H2O
Water
C6H12O6
Glucose
O2
Oxygen
CO2
Carbon dioxide
N2
Nitrogen
Fe2O3
Rust
NaCl..What type of bonding occurs in this molecule?
Ionic
H2O What type of bonding occurs in this molecule?
Covalent
C6H12O6 What type of bonding occurs in this molecule?
Covalent
O2 What type of bonding occurs in this molecule?
Covalent
CO2 What type of bonding occurs in this molecule?
Covalent
N2 What type of bonding occurs in this molecule?
Covalent
Fe2O3 What type of bonding occurs in this molecule?
Ionic
density
Mass of a substance per unit volume
mass
Measured in grams
Volume
Measured in ml
mass/volume
Density formula