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Periodic Table Review. Question 1:. Who stated the principle of Periodic Law?. Answer 1:. Mendeleev. Question 2:. What is periodic Law?. Answer 2:. When elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.
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Question 1: • Who stated the principle of Periodic Law?
Answer 1: • Mendeleev
Question 2: • What is periodic Law?
Answer 2: • When elements are arranged in order of increasing atomic number, there is a periodic repetition of their physical and chemical properties.
Question 3: • What are Valence Electrons?
Answer 3: • Electrons in the outermost energy level
Question 4: • Elements with the same number of valence have similar ____________________.
Answer 4: • Properties
Question 5: • What are the vertical columns called?
Answer 5: • Groups
Question 6: • What are the horizontal rows called?
Answer 6: • Periods
Question 7: • What group numbers are the main group metals?
Answer 7: • Groups 1 and 2
Question 8: • What are the main group elements sometimes referred to as?
Answer 8: • Representative elements
Question 9: • What group number are the alkali metals?
Answer 9: • Group 1
Question 10: • What group number are the alkaline earth metals?
Answer 10: • Group 2
Question 11: • What group number are the halogens?
Answer 11: • Group 17
Question 12: • What group number are the noble gases?
Answer 12: • Group 18
Question 13: • What elements are the alkali metals?
Answer 13: • Lithium • Sodium • Potassium • Rubidium • Cesium • Francium
Question 14: • What elements are the alkaline earth metals?
Answer 14: • Beryllium • Magnesium • Calcium • Strontium • Barium • Radium
Question 15: • What elements are the halogens?
Answer 15: • Fluorine • Chlorine • Bromine • Iodine • Astatine
Question 16: • What elements are the noble gases?
Answer 16: • Helium • Neon • Argon • Krypton • Xenon • Radon
Question 17: • How many valence electrons do alkali metals have?
Answer 17: • 1 valence electron
Question 18: • Why can the alkali metals not be found alone?
Answer 18: • Because they are so reactive
Question 19: • How many valance electrons do alkaline earth metals have?
Answer 19: • 2 valence electrons
Question 20: • Are halogens metals or nonmetals?
Answer 20: • Nonmetals
Question 21: • When halogens react with metals what is produced?
Answer 21: • Salts
Question 22: • How many valence electrons do the halogens have?
Answer 22: • 7 valence electrons
Question 23: • Why do the noble gases not want to react?
Answer 23: • They have 8 valence electrons • They have a full outermost electron shell
Question 24: • What are the three properties of Metals?
Answer 24: • Shiny • Conductors • Malleable • Ductile
Question 25: • What does ductile mean?