Atoms and the Periodic Table Notes Directions: As you complete the nearpod notes, be sure to take notes on each slide.

Mendeleev’s Table:
Based upon the of the elements
Gaps in Mendeleev’s periodic table because they were (discovered/undiscovered) elements
Periodic Table Reorganized:
Organized by
Periodic law:
Periodic Table of the Elements Today:
Going across the periodic table the top numbers increase according to their
Groups:



Periods



Parts of an Atom:



Number of determines type of atom
Isotopes: What are they?
Atoms with the same number of of protons, but different numbers of
example:

Ions:What are they? Example: sodium atom= Na
If they gain electrons, they become
Na-1
If they lose electrons, they become
Na+1