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Periodic Table Review. 1. True or False Nonmetals are brittle and do not conduct electricity. True. 2. What are the trends of radius: Left to Right. Decrease. Top to bottom. Increase. 3. What are the trends of Ionization Energy: Left to Right. Increase. Top to bottom. Decrease.
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1. True or False • Nonmetals are brittle and do not conduct electricity True
2. What are the trends of radius: Left to Right Decrease Top to bottom Increase
3. What are the trends of Ionization Energy: Left to Right Increase Top to bottom Decrease
4. Which element has the larger radius? Ca or Ra Ra (Radium)
6. What element has the higher ionization energy? Cs or Rn Rn (radon)
7. Which family can be found as elements in nature? Noble gases
9. What is the name given to the elements that can behave like a metal or a nonmetal depending on the conditions? metalloids
10. Name the Metalloids Boron, Silicon, Germanium, Arsenic, Antimony and Tellurium
11. Dobereiner grouped ____ elements together and called them ________ Threes Triads
12. The modern periodic table is arranged by what property? Atomic Number (new periodic law)
13. What metallic family follows the transition metals on the periodic table? Post transition metals
14. What is the most metallic element on the periodic table? Francium
15. What is the most reactive metallic family on the periodic table? Alkali metals
16. Which element has the smaller radius? Be or Ba Be (beryllium)
17. John Newlands discovered that chemical and physical properties repeated every 8 elements. This is called Law of Octaves
18. What is the most nonmetallic element on the periodic table? Fluorine
19. What is the energy needed to remove an electron called? Ionization energy
20. How many valence shell electrons do the alkaline earth metals have? 2
21. Who made the first periodic table? Mendeleev
22. What is electronegativity and what is the trend from left to right? Attractiveness - increases
23. Name the 2 elements that are liquid at room temperature? Mercury (Hg) and Bromine (Br)
25. Are Ca2+ andNe isoelectronic? No Are B3+ and Li+isoelectronic? Yes
27. Metals make what kind of ions? Do they gain or lose electrons? Cations – lose electrons
28. Where are the inner transition metals on the periodic table? 4f Lanthanoids and 5f Actinoids
29. Which has a larger radius an atom or a cation? An atom
30. Which has a larger radius an atom or an anion? An anion