19.07.2017 Views

chem2

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

• atomic mass (weight)<br />

• decimal number on the periodic table – it is<br />

for all the atoms of the element<br />

• number of protons plus the number of<br />

neutrons – it’s an average on the table<br />

• weighted average of all the isotopes of<br />

that element<br />

• the mass of one atom is a whole number

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!