Definitions
What is an atom?
Fundamental piece of matter
Atoms are composed by?
Protons, neutrons and electrons
What do you do to find the atomic mass?
Use the periodic table
How many protons does an oxygen has?
8
What is matter?
Everything except energy
Protons have a ....... charge
Positive
What is the correct term for the final answer?
grams per mole or G/MOL
How many protons does an nitrogen has?
7
What is mass?
How much matter does an object have
Electrons have a ....... charge
Negative
What do you do to find single atom?
mass of the protons + neutrons
which element represents the H?
What is weight?
how much something is pulled by gravity
Magnesium atoms have .... protons
12 protons
What do you do to find all atoms?
multiply each isotopes by its abundance. If its % you divided by 100. Finally add them.
What is the atomic mass of strontium?
87.62 g/mol
What is atomic mass?
The average of protons and neutrons
Calcium atom have ..... protons
20 protons
What element I use to set the example?
Carbon
What is the atomic mass of plutonium?
244 g/mol