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Periodic Table Review

Teacher: Mr. Gast
Across
Number of families in the Periodic Table.
Russian chemist who is given credit for developing the Periodic Table
Which type of element does the Periodic Table have the most of, metals or nonmetals?
The elements are arranged by increasing _______. (two words)
Letters that make up the symbol for selenium.
Number of electrons in Aluminum's last energy level.
Horizontal rows in the Periodic Table
Down
Number of energy levels that an atom of Xenon has.
Name for the outermost electron energy level or orbital.
Are elements in the same period alike or different?
Number of periods in the periodic table.
Element with the symbol Sr.
Vertical groups or columns in the Periodic Table
Are elements in the same family alike or different?
Only liquid metal in the Period Table.
Greatest number of valence electrons possible.
Number of electrons possible in the first energy level.