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  • CHE 2C MAIN GROUP DESCRIPTIVE CHEMISTRY
  • CHE 2C MAIN GROUP DESCRIPTIVE CHEMISTRY
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Che 2C Main Group Descriptive Chemistry Questions And Answers Elaborations!!

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Institution CHE 2C MAIN GROUP DESCRIPTIVE CHEMISTRY
Course CHE 2C MAIN GROUP DESCRIPTIVE CHEMISTRY
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CHE 2C MAIN GROUP DESCRIPTIVE CHEMISTRY QUESTIONS AND ANSWERS ELABORATIONS!!

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CHE 2C MAIN GROUP DESCRIPTIVE CHEMISTRY QUESTIONS
AND ANSWERS ELABORATIONS!!
Alkali Metals
Answers :-Li, Na, K, Rb, Cs, Fr
-highly reactive, valence e- easily given up
-reacts vigorously w/ water to make H2
Hydrogen


Answers :-OS: 1
-NOT part of alkali metals
-lightest element, escapes from earth
-small, low IMF, liquifies @20K
-used in rocket fuel
-location debatable
Alkaline Earth metals


Answers :-OS=2
-Be, Mg, Ca, Sr, Ba, Ra
-Low density
-low melting and boiling point
-low solubility
-form basic oxides
Beryllium/Be


Answers :-smaller, harder, higher melting point
-higher ionization energy

, -more covalent bonding
-less reactive than family members
-amphoteric oxide
Magnesium/Mg and Calcium/Ca


Answers :-biologically important!
-lower solubility=hard water
Barium/Ba


Answers :-Toxic
-absorbs X-rays
-not very soluble @ low conc.
-useful for gastromedicine
Radium/Ra


Answers :Radioactive
Group 13


Answers :-OS= +1,+3
-B, Al, Ga, In, Tl-
-soft, relatively reactive
Aluminum oxide/Al2O3


Answers :-corundum structure
-basis for various precious gems

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