Your Name: ______
Physical Science in Action Video Series
Periodic Table of Elements
During the video.
1. The periodic table is a map of the atoms and elements.
2. The first electron shell of an atom can only hold 2 electrons. The second electron shell can only hold 8 electrons. An atom can bond with another atom only if its outer electron shell IS NOT full.
3. Dimitri Mendeleev studied and grouped elements by their properties. This allowed him to develop the periodic table.
4. Draw and label the square on the periodic table for the element sulfur. Include the element name, symbol, atomic weight, and atomic number:
5. Atomic number is the number of protons in an atom of the element. Atomic Mass/Weight is the number of protons plus the number of neutrons in the atom of the element.
6. Not every atom of an element has the same number of neutrons. The atomic mass is the average mass of the atom of a particular element.
7. The periodic table has 7 rows called periods. Each element in the same period has the same number of electron shells/orbits.
8. The periodic table has 18 columns called groups/families. Each element in the same group has the same number of electron(s) in its outer shell/orbit. In addition, the elements in each group share similar properties.
9. Alkali, Alkaline Earth, Transition, Other, and Rare Earth are the classifications of metals.
10. Metalloids have properties of both metals and nonmetals.
11. Metals conduct heat and electricity easily. Nonmetals do not conduct heat and electricity.
12. Halogens and Nobel Gases are nonmetals.
- Nobel gases have 8 electrons in their outer shell and are very stable; they do not react chemically.
After the video.
Without looking at the periodic table, list all the elements of which you can remember. Write each element’s name and symbol.