Valence Electrons
Number of Valence electrons in the 13th (3A) column
3
Lewis dot for Hydrogen
H with one dot
Draw the Lewis dot for O2-
8 dots around O
Ionic bonds are between a ___ & a ___.
metal & nonmetal
What is the 2D model that shows dots as electrons and lines as bonds?
Lewis Dot
If valence are transferred that is called what kind of bond?
Ionic
Lewis dot for O
6 dots around O
Draw the Lewis dot for Cl1-
8 dots around Cl
Lewis Structure of NaF
1 arrow from Na to F
Covalent bonds are between a ___ & a ___.
nonmetal & nonmetal
If valence electrons are shared, that is considered as a what compound?
2
The Lewis Dot Structure of Antimony (Sb).
5 dots around Sb
Draw the Lewis dot for C2-
6 dots around C
Lewis structure of Na2O
1 arrow from each of the Na to O
What is the molecular shape for CH4?
tetrahedral
Number of Valence electrons in the 18th (8A) column (INCLUDE THE EXCEPTION).
8 except for He which has only 2
The Lewis Dot Structure for Chlorine (Cl).
7 dots around Cl
Lewis dot for O2+
4 dots around O
Lewis Structure of BeF2
2 arrows point from Be to each of the F (2 arrows total)
The Lewis Dot Structure of NH3 & its shape
3 h around 1 n with 2 paired electrons, pyramidal
What family has the most reactive non-metals?
Halogens
The Lewis Dot Structure of Selenium (Se).
6 dots around Se
Na
Lewis Structure of AlCl3
3 arrows all starting from Al
pointing to Cl (1 to each)
The Lewis Dot Structure for HCN & its shape
1 h single bond c triple bond n 1 paired electrons, linear