Warm up:
Which element is represented by the electron configuration:
1. 1s2 2s2 2p3
2. 1s2 2s2 2p6 3s2 3p6
3. 1s2 2s2 2p6 3s2 3p6 4s2 3d1
Calculate the molecular mass of
4. NH3
5. 3CO3
Homework:
Regular chemistry: none
Honors chemistry: watch video on moodle
