CHEM CH2-2

Card Set Information

Author:
purplerubycrystal
ID:
131373
Filename:
CHEM CH2-2
Updated:
2012-01-29 22:11:45
Tags:
CHEM CH2
Folders:

Description:
CHEM CH2-2
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user purplerubycrystal on FreezingBlue Flashcards. What would you like to do?


  1. groups of elements designated by the letter A
    main group elements
  2. groups of elements designated by the letter B
    transition group elements
  3. horizontal rows
    periods
  4. -first seperate row
    -second seperate row
    -why are they not included in the main table?
    • -lanthanide elements (58-71)
    • -actinide elements (90-103)
    • -because the table would be too wide
  5. -left side elements
    -how many quarters of the elements are in this group?
    • metals
    • 3 quarters
  6. -upper right portion elements
    -what percentage of elements are in this grouping?
    • nonmetals
    • <20%
  7. -properties are intermediate between those of metals and those of non-metals (located between them)
    metalloids
  8. -group 1A
    -are they very reactive?
    -how do they allways exist in nature?
    • alkali metals
    • YES
    • allways in combination with other elements
  9. -group 2A
    -what do they form when they react with water?
    • alkali earth metals
    • alkali soultions
  10. -group 7A
    -composed entirely of...
    -very reactive?
    -form what when combined with alkali metals?
    • halogens
    • nonmetals
    • YES
    • salts
  11. -group8A
    -very reactive?
    • -noble (rare) gases
    • -least reactive elements
  12. shiny soilds that react vigourously with air, water, and halogens:
    alkali metals, group 1A
  13. group 6A
    chalcogens
  14. IUPAC
    International Union of Pure and Applied Chemistry
  15. another name for metalloid
    semimetal
  16. 2 elements that exist as liquids at room temp
    • bromine
    • mercury
  17. elements that exist as gases at room temperature
    • 1. hydrogen
    • 2. nitrogen
    • 3. oxygen
    • 4. flourine
    • 5. chlorine
    • 6. helium
    • 7. neon
    • 8. argon
    • 9. krypton
    • 10. xenon
    • 11. radon
  18. -extended strudture of atoms in a crystalline formation, all closely packed together and often containing 12 nearest neighbors
    -which elements get this structure?
    • atomic lattice
    • metals
  19. elements that form diatomic molecules (8)
    • H
    • N
    • O
    • F
    • Cl
    • Br
    • I
    • At
  20. elements that tend to form extended covalently bonded structures (7)
    • B
    • C
    • Si
    • Ge
    • As
    • Sb
    • Se
  21. elements that form allotropes (4)
    • C
    • O
    • P
    • S
  22. red phosphorus and white phosphorus are examples of:
    allotropes
  23. forms of the same element with different physical and chemical properties:
    allotropes

What would you like to do?

Home > Flashcards > Print Preview