Valence Electrons
Lewis Dot Symbol
Lewis Dot Structures Covalent
Ionic or Covalent?
VSEPR
100

Number of Valence electrons in the first column

1

100

Lewis dot for Hydrogen

H with one dot

100

The Lewis Dot Structure of CH4

4 h around 1 c

100

What type of bond is formed between Lithium and Fluorine?

Ionic

100

What is the molecular geometry and bond angle for CO2?


Linear, 180o

200

Number of Valence electrons in group 13

3

200

Lewis dot for O

6 dots around O

200

The Lewis Dot Structure of NH3

3 h around 1 n with 2 paired electrons

200

What type of bond is formed between Magnesium and Sulfur?

Polar Covalent

200

What is the bond angle and shape for the molecule below?


Trigonal Planar 120o 

300

Number of Valence electrons in group 16

6

300

The Lewis Dot Structure of Antimony.

5 dots around Sb

300

Lewis Dot Structure for HCl

h-cl 3 sets of paired electrons

300

What type of bond is formed between Phosphorous and Sulfur?

Non Polar Covalent
300

Give the molecular geometry and bond angle for the molecule below:


Tetrahedral, 109.5o

400

Number of Valence electrons in group 2A

2

400

The Lewis Dot Structure for Chlorine (Cl).

7 dots around Cl

400

The Lewis Dot Structure of H2O

h-o-h 2 paired electrons on o

400

What type of bond is formed between Sodium and Chlorine?

Ionic

400

What is the molecular geometry for NF3?

Trigonal Pyramidal

500

Number of Valence electrons in group 18 (Include the exeption).

8 except for He which has only 2

500

The Lewis Dot Structure of Selenium (Se).

6 dots around Se

500

The Lewis Dot Structure for HCN

1 h single bond c triple bond n 1 paired electrons

500

What type of bond is formed between Hydrogen and Carbon?

Polar Covalent

500

If a compound consists of 3 atoms and has a bond angle of 109.5. What is its molecular geometry?

Bent

M
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