02/07/2011

Atomic Structure Assignment (Question 5-answer)

Q5)Sodium is a metal and sulfur is a non-metal....why we classify them this way??'
Physical properties:
Sodium-conduct electricity and heat
Sulfur-does not conduct electricity and heat (insulator)
Sodium has a greater melting and boiling point than Sulfur.

Chemical properties
Sodium-(2.8.1) LOSE 1 electron to complete the valence shell, to make it stable.
Sulfur-(2.8.6) GAIN 2 electrons to complete the valence shell, to make it stable.

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