2. Introduction to the Periodic Table Atomic Number ● Symbol ● Atomic Weight Element ● Compound ● Mixture

3. I am Dmitri Mendeleev! I made the PERIODIC TABLE !

4. How do you read the PERIODIC TABLE?

5. What is the ATOMIC NUMBER? o The number of protons found in the nucleus of an atom Or o The number of electrons surrounding the nucleus of an atom.

6. What is the SYMBOL? o An abbreviation of the element name.

7. What is the ATOMIC WEIGHT? o The number of protons and neutrons in the nucleus of an atom.

8. How do I find the number of protons, electrons, and neutrons in an element using the periodic table? o # of PROTONS = ATOMIC NUMBER o # of ELECTRONS = ATOMIC NUMBER o # of NEUTRONS = ATOMIC _ ATOMIC WEIGHT NUMBER WEIGHT NUMBER

9. Other info about the PERIODIC TABLE? o Shows the elements in order by atomic number from left to right.

10. Other info about the Periodic Table. o Columns are known as “Groups” or “Families” o Rows are known as “Periods” Groups Groups Periods Periods

11. Other info about the Periodic Table o The last group on the periodic table are the noble gases. Group 18