Unit 1 Flashcards

1
Q

What is an ionic bond

A
  • A chemical bond formed by electrostatic attraction between positive and negative ions
  • Transferring of electrons
  • 7 Types
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2
Q

What is a covalent bond

A

Sharing of electrons

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3
Q

Define electronegativity

A

A measure of the ability of an atom in a molecule to draw bonding electrons to itself

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4
Q

Draw the electronegativity line

A

Nonpolar Partial charge Full charge
No meaningful Polar
charge

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5
Q

What does isoelectric mean

A

The same

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6
Q

What are the two exceptions to the octet rule

A
  • Hydrogen- no p orbital-> 2 electrons filled-> duet rule

- Boron-> 6 electrons filled

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7
Q

What is a polar covalent bond

A

One in which the bonding electrons spends more time near one Atom

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8
Q

What is the formal charge formula

A

FCcentral.atom=#of valence electrons-(#of bonding electrons/2)- #of lone pair electrons

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9
Q

What is resonance

A

Delocalized bonding

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10
Q

What is the bond angle for linear geometry

A

180

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11
Q

What is the bond angle for Trigonal planar geometry

A

120

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12
Q

What is the bond angle for tetrahedral geometry

A

109.5

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13
Q

What is the bond angle for trigonal bypyramidal geometry

A

90 and 120

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14
Q

What is the bond angle for octahedral geometry

A

90

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15
Q

The energy required to break a chemical bond is called what

A

Bond energy

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16
Q

Types of Bonds- location in 3D space

A

1- single- lowercase sigma- orbitals overlap head to head along bond axis
2- double- pi- orbitals overlap side to side above and below bond axis

17
Q

the number of electrons lost or gained by an Atom is determined by its need to be isoelectronic with a noble gas… Why?

A

It needs to achieve Psuedo

18
Q

What is the goal of bonding

A

To fill the outer shell or to fill orbitals

19
Q

What type of property is electronegativity

20
Q

What explains why Atoms share

A

Electronegativity

21
Q

Nonpolar bonds contain what special type of group of atoms

22
Q

Metals are isoelectric with the noble gas in the _____ Period

23
Q

What types of charges do ionic bonds have

24
Q

How many degrees do you lose when you add a loan pair

25
Why don't solids conduct electricity
Because they have nothing to bond with. It isn't dissolved with any other substance.
26
Why is water a bad conductor of electricity
Once it becomes pure, its impurities are gone. Ions can not transfer now because of the lack of ions
27
Why don't some of the liquids conduct electricity
The polarity is below 1.8