1. The Periodic Table

2. Standards
1. The periodic table displays the elements in increasing atomic number and shows how periodicity of the physical and chemical properties of the elements relates to atomic structure. As a basis for understanding this concept:
a. Students know how to relate the position of an element in the periodic table to its atomic number and atomic mass.
1. b. Students know how to use the periodic table to identify metals, semimetals, nonmetals, and halogens.
1. c. Students know how to use the periodic table to identify alkali metals, alkaline earth metals and transition metals, trends in ionization energy, electronegativity, and the relative sizes of ions and atoms.
1. d. Students know how to use the periodic table to determine the number of electrons available for bonding.
e. Students know the nucleus of the atom is much smaller than the atom yet contains most of its mass.

3. Standards Continued
1. f.* Students know how to use the periodic table to identify the lanthanide, actinide, and transactinide elements and know that the transuranium elements were synthesized and identified in laboratory experiments through the use of nuclear accelerators. 1. g.* Students know how to relate the position of an element in the periodic table to its quantum electron configuration and to its reactivity with other elements in the table. 1. h.* Students know the experimental basis for Thomson’s discovery of the electron, Rutherford’s nuclear atom, Millikan’s oil drop experiment, and Einstein’s explanation of the photoelectric effect. 1. i.* Students know the experimental basis for the development of the quantum theory of atomic structure and the historical importance of the Bohr model of the atom. 1. j.* Students know that spectral lines are the result of transitions of electrons between energy levels and that these lines correspond to photons with a frequency related to the energy spacing between levels by using Planck’s relationship (E = hv).

6. Key Na Atomic Number 11 Element symbol Element name
Sodium
22.99
Atomic Number
Element symbol
Element name
Average atomic mass*

7. Key Na 11 Atomic Number Number of Protons
Sodium
22.99
Atomic Number
Number of Protons
Number of Electrons (when atom is neutrally charged)
Property unique to each element

8. Key Na 11 Element symbol Sodium 22.99
Sometimes abbreviation of English name
Sometimes abbreviation of Latin/Greek name
Familiarize yourself with them and Chemistry problems will become easier

9. Key 11 Na
Sodium
22.99
Element name
What we call it

10. Key Na 11 Average atomic mass* Sodium 22.99
Weighted Average number of Protons and Neutrons (approximately)

11. Organization Period – horizontal row Group – vertical column
Class – large family of similar elements (ex. metals, nonmetals, metalloids)
Subclass – smaller division of similar elements (ex. transition metals, rare earth metals)

12. Going Left to Right
Increasing Protons by 1

13. Similar Electron Configurations
Going Downward
Similar Electron Configurations

15. Special Case: Hydrogen

16. Metals

17. Metals

18. Alkali Metals

19. Alkaline Earth Metals

20. Transition Metals

21. Transition Metals

22. Rare Earth Metals

23. Lanthanide Series

24. Actinide Series

25. Metalloids
(aka Semi-Metals)

26. Nonmetals

27. Regular Nonmetals

28. Halogens

29. Special Case: Hydrogen

30. Noble Gases

34. Going Left to Right
Increasing Protons by 1

35. Similar Electron Configurations
Going Downward
Similar Electron Configurations