Chemistry Coulter 4th Wednesday

From yesterday's quiz. I would highly recommend you make sure you have the correct answers.

Today we went over the quiz from yesterday

Periodic Trends

1.    Ionization Energy: the energy required to removean electron from an atom or ion.

a.    Example: Na by it’s self is very reactive…1s²2s²2p⁶3s¹

Valence electrons: 1

If you take the valence electron away…

Ifthe Shell is full it is stable.

2.    Atomic Radius

3.    Electronegativity

4.    Electron Affinity

Octet:

·     8 electrons in the outer shell = a very stableatom

·     (full set of electrons in the outer shell)