The atom
The nucleus is made up of these subatomic particles
the proton and the neutron
A mole is an ______ of something
How heavy is one mole of aluminum atoms?
26.9 grams
The elements in the periodic table get their numbers from this
Moles are commonly used to count these
How many moles is 12.04 x 1023 Na atoms of Salt (NaCl)? (hint: one mole is 6.02*1023 atoms)
2 moles
This is oxygen's atomic number
8
The smallest subatomic particle is this
Electron
Molar mass is this
The number of grams per mole of a substance. How heavy having 1 mole of a certain thing is
How heavy is one mole of aluminum chloride, AlCl3?
133.34 grams!
This is why we use the periodic table
It organizes the elements in an easily understandable way!