Chemical Bond

Chemical Bonding

WHAT IS A CHEMICAL BOND?

AN ELECTRICAL ATTRACTION BETWEEN THE NUCLEI AND VALENCE ELECTRONS OF AN ATOM AND WHICH BINDS ATOMS TOGETHER.

Multiple Choice

TRUE OR FALSE: Any pair of element can form a chemical bond.

• TRUE

• FALSE

THE OCTET RULE

The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. 

Open Ended

ANALYSIS: Explain what happens between the sodium and fluorine atom in this scenario.

IONIC BOND

TRANSFER OF ELECTRONS between METAL AND NON METAL (cation + anion)

Open Ended

PICTURE ANALYSIS: Explain what happens between the hydrogen atoms and oxygen atom in this scenario.

COVALENT BOND

SHARING OF ELECTRONS (AMONG NONMETALS)

POLAR VS. NONPOLAR COVALENT BONDS

WHAT IS ELECTRONEGATIVITY?

A MEASURE OF THE TENDENCY OF AN ATOM TO ATTRACT ELECTRONS TOWARD ITSELF.

NONPOLAR 

ELECTRONS ARE EQUALLY SHARED BY THE BONDED ATOMS.

BALANCED DISTRIBUTION OF ELECTRICAL CHARGE

ELECTRONS SPEND THE SAME LENGTH OF TIME IN THE LOCALITY OF EACH ATOM.

POLAR

BONDED ATOMS HAVE AN UNEQUAL SHARING OF ELECTRONS (PARTIAL ELECTRON TRANSFER) 

Multiple Choice

TRUE OR FALSE:

IN A POLAR COVALENT BOND, THE ELECTRON DENSITY (LENGTH OF TIME OF THE ELECTRONS IN THE LOCALITY OF EACH ATOM) IS THE SAME AROUND THE NUCLEI OF THE ATOMS INVOLVED.

• TRUE

• FALSE

Multiple Choice

TRUE OR FALSE:

IN A POLAR COVALENT BOND, THE ELECTRONS ARE CLOSER TO THE MORE ELECTRONEGATIVE ATOM.

• TRUE

• FALSE

Take a screenshot of this table for the quizizz later!

Next lesson: Molecular Polarity