1. Atoms and the Periodic Table

2. What is an Atom? Atom Building blocks of all matter
Made of Protons, Neutrons, and Electrons

3. Protons - Positively charged particles located in the nucleus
Neutrons - Neutral particles located in the Nucleus
Nucleus - The center of the atom where all the atomic mass is

4. Electrons - Negatively charged particles with almost no mass that move around the nucleus
Electron Cloud - The space surrounding the nucleus in which electrons are most likely found.

5. Isotope
An atom that has a constant atomic number but differing atomic masses, giving the atom differing numbers of neutrons

6. Subatomic Particles
These are the individual protons, neutrons, and electrons that make up an atom

7. Element. A pure substance made of only one kind of atom
Elements are arranged by increasing atomic number

8. Nuclear Fusion
Process in which two atomic nuclei combine and form a larger nucleus

9. Plasma
State of matter that consists of a gas like mixture of free electrons and nuclei of atoms that have been stripped of their electrons

10. The Periodic Table
There were three (3) key people that contributed to the elements, atoms and the periodic table.
Dimitri Mendeleeve
put the first periodic table together based on increased atomic mass

11. Joseph Priestly Earnest Rutherford
credited with the discovery of oxygen (candle in the jar)
Earnest Rutherford
was credited with the discovery of the nucleus

12. The periodic table is an arrangement of all the elements in order of increasing atomic number

13. Each element on the periodic table has specific properties and information

14. Chemical symbol All start with a capital letter.
NO EXCEPTIONS
If there is a two letter symbol, the second letter is ALWAYS lower case

15. Atomic Number The number of protons in an atom
The number of electrons in an atom
The order in which the periodic table is arranged.

16. Atomic Mass
The number of protons PLUS the number of neutrons

17. Periodic table trends Period Group The rows of the periodic table 1-7
The columns of the periodic table. Some have specific names

18. Group 1 Alkali Metals
Group 2 Alkali Earth Metals
Group 17 Halogens
Group 18 Noble Gasses

19. Alkali Metals
React with other elements by loosing or giving up one electron
Always found combined with other elements n nature

20. Alkali Earth Metals Good Conductors of electricity.
React by loosing two electrons
Always found combined with other elements in nature

21. Halogens Group 17 These are all salt forming
Typically gain or share one electron.
Often found in bonds with group 1 elements

22. Noble gasses Group 18 elements Not usually found in compounds
Have a full valence shell of electrons