Chemistry Midterm Study Guide Vocab Chapter 3

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Across
  1. 1. – A series of 14 elements from atomic numbers 57–71, often called rare earth elements, located in the f-block
  2. 5. Gas – An element in Group 18 that is very unreactive due to having a full valence electron shell
  3. 7. – The repeating pattern of chemical and physical properties of elements across periods and groups in the periodic table
  4. 9. Law – The law stating that the properties of elements are a periodic function of their atomic numbers
  5. 10. – An element that is generally not shiny, brittle, and a poor conductor of heat and electricity
  6. 11. – An element that is typically shiny, malleable, ductile, and a good conductor of heat and electricity
  7. 12. – A substance that can conduct electricity under some conditions but not others, often a metalloid
Down
  1. 2. – A series of 14 elements from atomic numbers 89–103, mostly radioactive, located in the f-block
  2. 3. Element – An element in the d-block of the periodic table, often exhibiting multiple oxidation states and forming colored compounds
  3. 4. – A horizontal row in the periodic table
  4. 6. – A vertical column in the periodic table
  5. 8. – An element that has properties of both metals and nonmetals