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Periodic Table Facts Worksheet Name:_________________________________________ Period _____ Use the following website for help: http://www.chem4kids.com/files/elem_pertable.html
1. Horizontal rows are called _____________.
2. Elements in the same _____________ (row) are filling up the same energy level as you move from left to right.
3. Vertical columns are called _____________.
4. Chemical _____________ have similar properties.
5. _____________ electrons are the electrons in the outermost shell of the atom.
6. All families have the same number of _____________ electrons.
7. The _____________ _____________ have full outer electron shells which makes them inert or nonreactive.
8. Noble gases are the elements in _____________ column (includes helium, neon, _____________, and _____________)
9. Noble gases are elements that have a _____________ valence electron shell.
10. Noble gases are also called ______________ gases because they don’t react with other elements.
11. The _____________ family are the most active metals.
12. Alkali metals are the elements in the _____________ column.
13. _____________ is NOT an alkali metal because it behaves unlike any other element and does not belong to a family. It is our only orphan!
14. The _____________ family are the most active NONmetals.
15. Halogens are elements in the _____________ column (includes fluorine, chlorine, _____________, and _____________.
16. Which elements had complete outer shells? Give the name and symbol for each. _____________ ___ _____________ ___ _____________ ___
17. What do you notice about the location of the elements in #16?
18. Which elements had only one valence electron? _____________ ___ _____________ ___ _____________ ___
19. What do you notice about the location of the elements in #18?
20. What do you notice about the number of valence electrons as you move from left to right across a row or period in the periodic table? (Na → Mg → Al → Si → P → S → Cl → Ar)
21. What do you notice about the number of energy levels or shells as you move down a row or period in the periodic table? (H → L i→ Na)
22. Elements are organized into families according to the physical and chemical properties. Identify the elements that you used in step 5 that belong to each family based on the number of valence electrons. Give the name and symbol for each element.
Alkali Metals – 1 valence electron _____________ ___ & _____________ ___ Alkaline Earth Metals – 2 valence electrons ___________ ___ & ___________ ___ Boron Family 3 valence electrons _____________ ___ & _____________ ___ Carbon Family 4 valence electrons _____________ ___ & _____________ ___ Nitrogen Family 5 valence _____________ ___ & _____________ ___ Oxygen Family 6 valence electrons _____________ ___ & _____________ ___ Halogens – 7 valence electrons _____________ ___ & _____________ ___ Nobel Gases Complete or full outermost shell _____________ ____,
_____________ ____, & ______________ ____ 23. What do you notice about the location and valence electrons of the elements in each
family?
24. How would you classify hydrogen? Why?
25. Predict the number of valence electrons for each element based on its location in the Periodic Table of Elements. You will need to use the table in your textbook. Barium = ______ Lead = ______ Xenon = ______ Potassium = ______
