CHEM STRY Periodic Properties Covalent Bonding Hybridize Molecular Shapes Reasons to Bond Ionic...

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CHEM STRY

Transcript of CHEM STRY Periodic Properties Covalent Bonding Hybridize Molecular Shapes Reasons to Bond Ionic...

Page 1: CHEM STRY Periodic Properties Covalent Bonding Hybridize Molecular Shapes Reasons to Bond Ionic Bonding $ 200 $ 200$200 $ 200 $ 200 $400 $ 400$400.

CHEM STRY

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Periodic Properties

Covalent Bonding

HybridizeMolecular

ShapesReasons to

BondIonic

Bonding

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Polyatomic Ions

Predicting Shapes

Photon emission

Periodic Regions

Dem Bonds

Dem Names

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Final Jeopardy

Polyatomic

Ions

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This is where ammonia get’s the extra hydrogen and the

positive charge to form ammonium when it’s dissolved in water.

Final JeopardyWhat is from water?

A small number of water molecules auto-ionize into H+ and OH– and the H+ joins with the lone pair on nitrogen.

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This the area of the periodic table in which elements both

a) tend to become anions- and -

b) are among the most reactive.

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What is the area around chlorine?

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This the area of the periodic table in which elements both

a) tend to become cations - and -

b) are among the most reactive.

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What is the area around sodium and potassium?

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What are metals and non-metals?

When these kinds of elements bond together in binary

compounds, they are almost always ionic.

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What are non-metals?

When these kinds of elements bond together in binary

compounds, they are almost always covalent.

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What are all column IA elements EXCEPT hydrogen?

These are the alkali metals.

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What is to decrease potential energy or increase stability by filling orbitals?

This is the reason why non-metals bond together.

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This is how many electrons an orbital needs to be as stable as it

can be or to have the lowest amount of potential energy.

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What is 2?

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What is 3?

This the maximum number of atoms with which a nitrogen atom can bond covalently.

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What is a double bond?

This the kind of bonding that occurs when an atom shares 4 electrons with another atom.

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What are sigma (σ) and pi (π) bonds?

A double bond must have one of each of these.

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What an sp3 hybridization?

This is the hydridization of carbon, nitrogen, oxygen, or fluorine when they have only

single bonds.

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What is sp hybridization?

This is the hydridization of the carbon in carbon dioxide

(CO2).

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What an sp2 hybridization?

This is the hydridization of the oxygen in carbon dioxide

(CO2).

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What an sp hybridization?

This the hydrization on almost any atom which is triple bonded to another

atom.

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What is an sp2 hybridization?

This is the hybridization of a boron (B) atom that is bonded

to only 3 hydrogen atoms.

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What is a tetrahedral?

The electron pair shape of phosphorous trichloride.

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What is trigonal pyramidal?

This is the molecular shape of phosphorous trichloride.

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What is sp3 hybridization?

This the hybridization of phosphorous in phosphorous

trichloride.

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What is trigonal bi-pyramidal?

This the molecular shape of phosphorous pentachloride?

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This is why nitrogen cannot combine with 5 chlorine

atoms while phosphorous, which is in the same family,

can.

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What is that nitrogen does not have a d-sublevel while phosphorous does?

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Orbitals, sublevels, and valence electron levels—like the entire

universe—will tend to shift toward this kind of stability.

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What is higher stability?

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What is higher stability?

This is the kind of stability that orbitals have when they

have a pair of electrons.

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What is the potential energy is lowered?

This is what happens to potential energy when a

sublevel is full of electrons.

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What is that potential energy is lowered?

This is what happens to potential energy when a

valence electron energy level is filled with electrons?

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This is the term used to describe the number of electrons needed to fill the valence level of most

elements.

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What is an octet?

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What is a neutral charge?

This is the kind of overall charge that an ionic

compound will have.

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What is to reach a state with a full set of electrons in a new valence level?

This is the reason why metals tend to loose electrons in

ionic bonds.

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What is to reach a state with a full set of electrons in a new valence level?

This is the reason why non-metals tend to loose electrons

in ionic bonds.

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What is a 2+ charge?

This is the charge that metals obtain when they give away 2

electrons.

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What is a 1+ charge?

This is the charge that ALL alkali metals obtain in an

ionic bond.

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These are the polyatomic ions that a very small number of waters atoms automatically

form.

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What are the hydronium (H3O+) and hydroxide (OH) ions?

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What is a charged particle made up of 2 or more covalently bonded particles?

This is the definition of a polyatomic ion.

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This is why ammonia forms ammonium in water.

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What is that free protons share the lone pair of electrons on the ammonia and covalently

bond to the nitrogen creating orbital and charge stability?

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This is how polyatomic ions achieve charge stability?

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What is to be in a crystal, bond, or solution with oppositely charged ions?

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This is the kind of bonding that occurs between the atomic particles inside a

polyatomic ion.

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What is covalent bonding?

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This is the 1st step that a student scientist should do when

attempting to predict the shape of a simple molecule.

$400What is to write the electron dot notation of

the atoms and circle the electrons that might pair up (i.e. the sharing

arrangement)?

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This is what a student scientist should do to predict molecular

shapes once the sharing arrangement of electrons is

predicted.

$800What is to write a Lewis dot formula (or squeeze the shared electrons between the

atoms involved)?

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This is the kind of formula a student scientist should use to predict an electron pair shape.

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What is the Lewis dot formula?

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This is what a student scientist should do to predict the molecular

shape of a molecule from the modified electron pair shape.

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What is to erase the lone pairs of electrons leaving the shared pair geometry alone?

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This is the shape of a molecule which has 6 atoms covalently bonded to a central atom with

no lone pairs of electrons.

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What is an octahedral?

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This is why electrons in an atom only emit specific

frequencies of light.

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What is quantum behavior?

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This is the kind of energy that electrons respond to when they are promoted to higher energy

states.

$800What is energy with a sympathetic

wavelength?

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This is the reason we use the Bohr model of the atom to teach the

quantum model and spectroscopy even though we know it’s wrong.

$1200What is that it’s simple?

-or-What is the real model is too complex for high school chemistry?

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These photons result from electrons that have the

greatest drop in energy within an atom’s electron cloud.

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What is higher energy photons, shorter wavelength photons, or photons from the

ultraviolet end of the spectrum?

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What is infrared light or light wit very long wavelengths?

This light, which humans cannot see, results from

electrons dropping very short quantum levels.

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What are lithium, sodium, potassium, rubidium, cesium, and francium?

— or —What are all the elements in column one except

hydrogen?

Collectively, these elements make up the alkali metals.

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Collectively, these elements make up the alkaline-earth

metals.

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What are beryllium, magnesium, calcium, strontium, barium, and radium?

— or —What are all the elements in column two?

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Collectively, these elements make up the halogens.

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What are fluorine, chlorine, bromine, iodine, and astatine?

— or —What are all the elements in column seven?

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What are oxygen, sulfur, selenium, tellurium, and polonium?

— or —What are all the elements in column six?

Collectively, these elements make up the chalcogens.

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Collectively, these elements make up the inner transition

metals.

$2000What are the elements with atomic numbers 58

through 71 and 90 through 103?— or —

What are all the elements in bottom two rows of the periodic table?

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This the molecular shape of a simple molecule in which

there are 2 sigma bonds and 2 lone pairs of electrons on the

central atom.

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What is bent?

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What is a wiener or cigar shape?

This is the shape of a sigma (σ) bond.

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This is the shape of a pi (π) bond.

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What is a hot dog bun?— or —

What are 2 weiner shapes on opposite sides of the (sigma) bond?

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This is where all covalent bonds are found in

relationship to the atoms they are bonding.

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What is on OR around the axis between the 2 atoms involved in the covalent bond?

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What is 109.5°?

This is the angle between all the bonds in a tetrahedral

molecule.

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What is “Valence-shell Electron-pair Repulsion?”

This is the full name for the acronym “VSEPR.”

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What is to hybridize?

This is what some of the valence level electrons in the s and p sublevels must do for

covalent bonding to occur.

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What are lone pairs?

Unshared electrons are also called this.

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What is covalent bonding?

This is the sharing of electrons.

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What are Lewis structures?— or —

What are Lewis diagrams?

Lewis formulas are also known as this.

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Daily Double

What is the Greek language?

The language from which chemists draw letters to name

types of bonds.

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Daily Double

What is a sigma (σ) bond?

A covalent bond—whether or not it is a single, double, or triple bond—it always has

this kind of bond?

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This is why lone pairs of electrons are always located on an equatorial position in a trigonal bipyramidal

modified electron pair shape.

Daily Double

What is lone pairs take up more space than shared pairs of electrons?

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The Jeopardy champion!