Ch. 2 Flashcards
1
Q
Periodic Law
A
a law based on the observation that elements are arranged in order of increasing mass, certain sets of properties occur periodically
2
Q
Metals
A
- lie on lower left side and middle of the P.T
- good conductors of heat/electricity
- Often shiny
- tend to LOSE electrons when they undergo chemical changes
3
Q
Nonmetals
A
- Lie on upper right side of periodic table
- some are solids at room temperature, others are liquids and gasses
- all tend to GAIN electrons when undergoing chemical changes
- poor conductors of heat/electricity
4
Q
metalloids
A
- semiconductors
- exhibit mixed properties
- zigzag elements