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Question 1

Chemical Bonding? (Valence)

Answer 1

Valence are electrons are the only electrons involved in chemical Bonding

Question 2

Who discovered the Octet rule

Answer 2

Gilbert Lewis

Question 3

What is the Octet/duet Rule

Answer 3

When trying to form compounds, atoms tend to achieve the electron configuration of a noble gass
atoms having 8 electrons on outer shell
Hydrogen is the only exception

Question 4

What do atoms of metals tend to do

Answer 4

they tend to lose their electron leaving a complete octet in the next lowest energy

Question 5

Ionic Bond

Answer 5

Happens with metals to non metals
Basically steals electrons
Results in anion and cation sharing
Happens when electronegativity is above 2
Formula unit?

Question 6

Metallic Bonds

Answer 6

Metals to Metals
The forces of attraction between the free floating valence electrons and the positively charged metal ions.
Basically holds metals together
sea of electrons?
it is a lattice pattern (regular repeating pattern)
all the atoms are positive

Question 7

Covalent Bonds

Answer 7

happens in non metals
Shared
happens when difference is less than 1.7
Atoms share electron
Can be polar or non polar

Question 8

Covalent Bonds (Polar)

Answer 8

Difference is 0.5 - 1.7
one atom is getting slightly pulled away

Question 9

Covalent Bond (Non polar) (pure)

Answer 9

Difference is less than 0.5
The electrons are shared evenly
No partial charges
Glue together to form one or more molecule

Question 10

Electronegativity

Answer 10

The ability of an atom to attract an electron to itself within a chemical bond

Question 11

Metallic Compounds

Answer 11

Malleable (bent into any shape)
Ductility
conduct heat and electricity
high melting and boiling point

Question 12

Ductility

Answer 12

Able to be drawn to thin wires

Question 13

Ionic Compounds

Answer 13

always crystal solid at room temp
high boiling and melting point (thousand degree or more)
Conduct electricity when dissolved

Question 14

Molecular Compound

Answer 14

usually liquids or gasses
some solids are sugars
low melting and boiling points
strong odor

Question 15

Law of Multiple Proportions

Answer 15

Discovered by John Dalton
when two elements combine to form a compound the masses of the two elements have a ration of whole numbers

Question 16

Law of Definite Proportions

Answer 16

Discovered by Proust
A compound formed by elements in same ratios
like 8:1 stuff
for h20

Question 17

Electronegativity trend

Answer 17

F is the most electronegative
Noble gasses are not electronegative

Question 18

Monoatomic Ions

Answer 18

Single atom with a positive or neg charge, from a loss or gain of one or more

Question 19

Resonance

Answer 19

It cannot be expressed by a single strucutre
Different forms of what the strucutre can look like

Question 20

Halidies

Answer 20

F-
Cl-
Br-
I-

Question 21

Lewis structures form what bond

Answer 21

Covalenet