Chem
Published on Nov 19, 2015
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PRESENTATION OUTLINE
IONIZATION ENERGY
- Ionization-To separate or change into ions
- -An electron can move to a higher energy level when an atom absorbs energy.
- This energy level allows electrons to overcome the attraction of protons in the neutron.
ICONIC COMPOUNDS
- Compounds that contain ionic bonds
- A Chemical formula is a notation that shows the elements a compound contains
- For example NaCl is sodium chloride.
PROPERTIES OF IONIC COMPOUNDS
- High melting point (801.c)
- The arrangement of particles in a substance is the result of two opposing factors
- The second factor is kinetic energy of the particles
- The stronger the attractions among the particles, the more kinetic energy
- The particles must have before they can separate
CRYSTAL LATTICES
- Each chloride ion is surrounded by six sodium ions
- Each ion is attracted to all the neighboring ions with an opposite charge
- The shape of an ionic crystal depends on the arrangement of the ions in its lattice
- Crystals are classified into groups based on the shape of there crystals
- The arrangement of ions depends on the ratio of ions and their relative sizes
