Lecture 6 Flashcards
1
Q
horizontal rows are
A
periods
2
Q
vertical columns are
A
groups
3
Q
paired electrons are
A
stable
4
Q
unpaired electrons are
A
unstable
5
Q
unstable atoms form ions by
A
either losing or gaining electrons that mimic the closest noble gas electron configurations in order to become more stable
6
Q
alkali metals
A
group IA elements; li, na, rb, cs, fr;
one unpaired electron in the highest occupied s orbital
7
Q
abbreviated electron configuration uses
A
abbreviated noble gas names
8
Q
alkaline earth metals
A
has two valence electrons in the highest occupied s orbitals
9
Q
halogens
A
group 7A, has one unpaired valence electron in the highest occupied p orbital
