CHEM 1211K Exam 3

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1
How do you write abbv. electron configurations?
[noble gas] and then rest of the configuration for element
2
anomalus electron configurations
electron does not follow expected electron configuration and moves an energy level down, which makes the element more stable
3
What elements tend to display anomalus electron configurations?
transition metals and elements near the bottom of the periodic table
4
Hund's rule
^ is first, then v
5
degenerate
orbitals at the same energy level
6
aufbau/ building-up principle
elements in ground state "build up" in energy levels
7
core electrons
occupy full shells and generally ignored due to stability
8
valence electrons
electrons on the outer shell
9
What do valence electrons dictate?
properties and reactivity of atoms and molecues
10
d electrons are valence only for what elemental group?
transition metals
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