Bonding

INTRO TO CHEMICAL BONDING

100

What is a bond? 

A bond is a connection between two molecules. 

200

Intramolecular Forces  vs. Intermolecular Forces  

INTERmolecular Forces act BETWEEN atoms inside a molecule.Bonding them chemically.

INTERmolecular Forces act within different substances Think INTERNATIONAL 

300

types of bonding 

There are many different types of bonding; chemical, molecular, ionic, covalent and metallic bonding. 

400

Difference between Ionic and Covalent Bonding 

Ionic bonding:Transferring electrons from one species to another and forming ions

Covalent:Sharing a pair of electrons between atoms

500

What does BARF stand for

Broken 

Absorbed 

Released 

Formed 

types of bonds and compounds they make

100

Why do elements form compounds? 

To become stable; Atoms will gain, lose, or share electrons in order to have 8 valence e- in their outer energy shell 

200

Would elements ever not benefit from forming compounds?

Yes if they are a Noble gas.

300

Which substance contains bonds that involved the transfer of electrons from one atom to another?

A) CO2    B) NH3    C)KBr     D) Cl2

C)KBr  

400

Polar covalent vs. Nonpolar covalent

Polar: Unequal sharing of e-

Nonpolar: Equal sharing of e-

500

Covalent bond:

• bond that results between nonmetallic elements that share valence electrons, forming a molecule. 

Ionic Bonds and Lewis structures

100

Oxidation numbers

• Charge of an ion within a compound

200

What compound will form between Magnesium and Bromine?

MgBr2

300

Atoms have

equal numbers of protons and electrons, making them neutral

400

Cations

positively charged from losing electrons (typically metals)

500

Anions

• negatively charged from gaining electrons (typically nonmetals)

ionic nomenclature

100

• Binary ionic compounds

• Compounds made of 2 elements that transfer e- in an ionic bond

200

• Compounds with polyatomic ions

• Polyatomic ion: a charged group of covalently bonded atoms

300

Binary molecular compounds

• Compounds made of 2 elements that share e- in a covalent bond

400

What is the formula for the compound that forms between calcium and nitrogen?

Ca3N2

500

1. Aluminum and Chlorine

AlCl3

Covalent Compound Structure

100

Molecule:

A neutral group of atoms held together by covalent bonds.

200

Diatomic elements

• when 2 atoms of the same element exist naturally as a molecule
  H2, N2, O2, F2, Cl2, Br2, and I2

300

Which compound has both ionic and covalent bonding?

A)CaCO3    B) CH2Cl2    C) CH3OH  D) C6H12O6

A)CaCO3

400

• The tendency for electron pairs to be as far apart from one another as possible, why? 

Because the valence e- are repulsed by each other.

500

Tendencies of Covalent compounds 

• Tend to still follow the octet rule.

• Bonds can be single, double, or triple.

• 
  

  • Double bond = 4 e- shared