5-4 Multiple Covalent Bonds and Lewis-Dot Structures

Chemical Bond

• wants to fill orbitals to get to 8

• both sides think they have 8 electrons (delulu atoms)

• mutual electrical attraction binding nuclui and valence electrons

Ionic Bond

• transfer of electrons

• metal atom loses electron(s) to non-metal atom

• similar to a extrovert talking to their other friends while their introvert friend is just there

Covalent Bond

• sharing of electrons

• two non-metal atoms share electrons

• everyone has SOME electrons

• delulu bond (the two girls who both think the same guy is THEIR man example)

Metallic

• one with hella electrons

• delocalized

• free mobility through latice

• positive metal ions attract conducting electrons

Electrons of one atom

are attracted to protons of another

Covalent Bonds

• share valence electrons → create molecules

• similar to the weird couple at lunch (hard to break apart)

• can share more than one electron (single, double, and triple)

Molecule

a group of atoms held together by covalent bonds

Molecular Compound

compounds created by simple units of molecules

Diatomic molecules

• two molecules involved

• Di=2

• Heteronuclear

• Homonuclear

Heteronuclear

• two different atoms

Homonuclear

• two same atoms

Almost always homonuclear atoms are?

H2, N2, F2, O2, I2, C2, B2

Have No Fear Of Ice Cold Beer

Single Bond

two atoms sharing TWO electrons

Double Bond

two atoms sharing FOUR electrons

Triple Bond

two atoms sharing SIX electrons

Lewis-Dot Structures

• used to represent molecules

Lone Pair

• (Lewis-Dot Structure)

• represented by a .

• Electrons that are alone (does not have another on the same element to pair with it)

Pair Bonded

• Represented by long dashes

• shows how valence electrons are arranged in atoms in a molecule

• Single bond -

• Double bond =

• Triple bond -= (imagine 3 lines stacked on top of each other)

How many electrons does row 1 of the periodic table have?

1

How many electrons does row 2 of the periodic table have?

2

How many electrons does row 9 of the periodic table have?

1

How many electrons does row 10 of the periodic table have?

2

How many electrons does row 11 of the periodic table have?

1

How many electrons does row 12 of the periodic table have?

2

How many electrons does row 13 of the periodic table have?

3

How many electrons does row 14 of the periodic table have?

4

How many electrons does row 15 of the periodic table have?

5

How many electrons does row 16 of the periodic table have?

6

How many electrons does row 17 of the periodic table have?

7

How many electrons does Helium have?

1

How many electrons does row 18 of the periodic table have?

8