Polarity

what is a Polar covalent bond?

when the two atoms electronegativity differentiates (their not sharing the electrons equally)

what is a non polar covalent bond?

When the atoms have identical electronegativity!!

What is the difference between a polar covalent bond, and an ionic bond?

Polar: electronegativity is slightly different

Ionic: very different electronegativities

Why is carbon dioxide non polar even though it's bonds are polar?

Which ones are polar covalent and which ones are non polar covalent?

n2

HF

F2

NO

FCL

Polar covalent: HF, NO, FCL

nonpolar covalent: N2 F2

How do they form a covalent bond?

By sharing electrons

The more electronegative your molecule is?

then its the negative partial charge

Electronegativity trend

Linear

180*

Trigonal Planar

(flat)

Tetrahedral

Trigonal Pyrimidal

107

Bent

104.5

What makes a bond polar?

Uneven sharing (0.2-1.7)

What makes a molecule polar?

Uneven distribution

1 lone pair: uneven

What makes a molecule ionic?

0.0-0.2

With an ionic bond you just?

Draw the transfer homie

Sn

TIN YOU FOOL

When potassium forms its most common ion it?

Loses an electron

When sulfur atom forms its most common ion it?

gains two electrons

If the formula for an ionic compound is represented by X2X3 what is the charge of the x ion?

Positive three cause the first one is always positive

Nitrogen and Oxegyn would....

Form a covalent compound

Tetraoxide goes to??

Tetroxide

Decaoxide?

decoxide

When do you add

Di

tri

tetra Etc.

When you are dealing with a covalent bond, which is two nonmetals

when do you draw the lewis dot structure of just the tranfery

when its a ionic bond

When do you use the roman numerals

when dealing with any transition metals

Bond is polar when?

BASIC BINARY IONIC COMPOUNDS

MEyal cation from groups 1,2,or 13 bonded with a nonmetal anion

Ternary ionic-polyatomic ions

MEtal cations and non-metal or polyatomic ions. ALL ABOUT IONS

Binary ionic compounds with transition metals

transition metal cation and non-metal or polyatomic ions

covalent (moleceular compounds)

two or more non-metals (above staircase) use prefixes here, no charges, roman numerals or polyatomic ions