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CovalentBonding and Naming

A bond in which electrons are shared.

covalent

A bond in which electrons are exchanged or taken.

ionic

How many valence electrons are in an atom of selenium?

6

Does PCl3 break the octet rule? Part 2: Draw the lewis

structure on the board.

yes

True or False: The pair of electrons in ammonia not involved in

bonding is called the “outer pair” ?

False, lone pair or unshared pair

What type of bond forms when an “s” orbital overlaps

with an s, p, or hybrid orbital?

Sigma,

Does the element iodine exist as a monotomic, diatomic, or triatomic

molecule?

diatomic

What type of orbital and how many of these orbitals are needed to make a pi bond.

“p” orbital, 2

Write down the prefixes (from 1-10) used in naming binary

molecular compounds.

Mono, di, tri, tetra, penta, hexa, hepta, octa,

nona, deca

Draw a hydrogen bond on the board.

A triple bond contains how many electrons?

6

CsF, H2O, ZnS, BaI2Which one of these compounds is a

molecular (covalent) compound?

H2O

Give the hybridization of each carbon atom in the following molecule?

C

C

C C C

H

H

H

HH

H

sp3

sp2

sp2

sp

sp

What is the shape of AsF3?

Trigonal pyramidal

What is the shape of GeCl4?

Tetrahedral

What is the shape of SeCl2?

Bent or Angle

What is the shape of AlCl3?

Trigonal Planar

What is the shape of CS2?

Linear

What is the shape of PBr5?

Trigonal Bipyramidal

Which one of these is the most polar bond?

C-O or C-F or C-Cl or C-N

C-F, polar covalent bond

What type of hybrid orbital exists in a methane molecule?

sp3

Name the four intermolecular forces that we recently talked about.

Dipole-dipoleIon-dipole

Dispersion forces (London)Hydrogen bonding

Which one of these forces is the weakest?

Dipole-dipoleIon-dipole

Dispersion forces (London)Hydrogen bonding

Write the formula for nitrogen trioxide.

NO3

Write the formula for diphosphorus pentabromide.

P2Br5

Write the name of the compound, H2O2.

Dihydrogen dioxide, hydrogen peroxide

Write the name of the compound, Si2Cl7.

Disilicon heptachloride

What is the chemical formula of tin(IV) carbonate?

Sn(CO3)2

A bond where electrons are shared is known as a _______

bond?

covalent

Is there such a thing as S3-?

No, only S2-, sulfide

Draw the electron dot structure of silicon?

How many valence electrons does aluminum have?

three

Draw the lewis structure for SCl2

Draw the lewis structure for AsH3

Draw the lewis structure for HSCN

Is CHCl3 a polar or nonpolar molecule?

Is BCl3 a polar or nonpolar molecule?

Is NO2 a polar or nonpolar molecule? What’s its geometry? Does it have resonance structures? Show on board.

Polar, bent

Draw the electron dot structure of antimony ?

What is the chemical formula of ammonium hydroxide?

NH4OH