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MEGR 1100 > MEGR 1100 > Flashcards

MEGR 1100 Flashcards

1
Q

The electron of a hydrogen atom revolves around the nucleus in subtle circle orbits

A

Postulates

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2
Q

What are the 3 Quantum Conditions

A

Size, shape, and orientation

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3
Q

n=

A

The principle quantum number determines the energy of the orbital

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4
Q

l=

A

The angular momentum determines the shape of the orbital

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5
Q

m sub l

A

The magnetic quantum number determines the orientation of the orbital

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6
Q

m sub s

A

The electron spin quantum number is characterized by the magnetic movement

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7
Q

Can be positive or negative

A

n

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8
Q

Describes the shape 0- (n-1)

A

l

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9
Q

l=0

A

S orbital

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10
Q

l=1

A

P orbital

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11
Q

l=2

A

D orbital

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12
Q

l= 3

A

F orbital

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13
Q

Determines the orientation

A

m sub l

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14
Q

m sub l =

A

negative l to positive l

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15
Q

2 spin magnitudes of negative 1/2 to positive 1/2

A

m sub s

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16
Q

No two electrons can have the same 4 quantum numbers

A

Pauli Exclusion Principle

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17
Q

The minimum amount of energy required to remove the most loosely bound electron of an isolated neutral atom molecule

A

Ionization Energies

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18
Q

The amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion

A

Electron Affinity

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19
Q

unpaired electrons attracted by a magnetic field

A

Paramagnetic

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20
Q

fully paired electrons are not attracted by a magnetic field

A

Diamagnetic

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21
Q

stable atom posses eight valence electrons

A

Octet Rule

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22
Q

Metal and non-metal (electrostatic)

A

Ionic bonding

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23
Q

Non-metals

A

Covalent bonding

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24
Q

Delocalized, metals, electrically conductive (molecular)

A

Metallic Bonding

25
Q

Shared pair of electrons comes from one atom

A

Coordinate Bonding

26
Q

electrons going to be shared

A

Covalent Bonds

27
Q

Formal Charge =

A

Valence electrons- Non-Bounded electrons- bounded electrons that

28
Q

sharing or taking electrons to be isoelectronic with noble gas (full octet)

A

Bonding

29
Q

Trades electrons; metals and non-metals

A

Ionic Bonds

30
Q

Shares electrons; non-metals

A

Covalent Bonds

31
Q

Delocalized electrons; metals and conductive

A

Metallic

32
Q

All chemical Processes consume (endothermic) or release (exothermic) energy

A

Energy of Ionic Bond Formation

33
Q

Valence shell electron pair repulsion

A

Vesper Theory

34
Q

2 things around a central atom

A

linear molecule

35
Q

108 degrees

A

linear molecule angle

36
Q

3 things surrounded by a central atom

A

Trigonal Plane

37
Q

120 degrees

A

Trigonal Plane angle

38
Q

Three things around a central atom with non bounded electrons

A

Bent molecule

39
Q

less than 120 degrees and around 116 degrees

A

Bent molecule angle

40
Q

4 things surrounded by a central atom

A

Tetrahedral

41
Q

109.5 degrees

A

Tetrahedral angle

42
Q

3 atoms are surrounded by a central atom but with non bounded electrons

A

Trigonal pyramidal

43
Q

Less than 109.5 degrees around 107 degrees

A

Trigonal Pyramidal angle

44
Q

Translational, Rotational, and Vibrational

A

Degrees of Freedom

45
Q

Moves in the x, y, and z direction

A

Translational

46
Q

Rotates around an axis going through the center of the molecule (through the bond line) involving momentum

A

Rotational

47
Q

Only applicable at higher temperatures. Linear molecules: 3N-5, Non-Linear molecule: 3N-6 for an N-atom molecule

A

Vibrational

48
Q

Mostly electrostatic attraction between oppositely charged particles

A

Ionic Crystals

49
Q

loses and electron

A

smaller radii

50
Q

Gains an electron

A

larger radii

51
Q

substances that tend to have a define shape

A

Solids

52
Q

Same forces as solid bonding these atoms, but the strength of the forces is not sufficient

A

Liquid

53
Q

Repeating/periodic array and bounded o their nearest atom

A

Crystalline solid

54
Q

Lacks a systematic and regular arrangement of. resembles a liquid

A

Non-Crystalline Solid

55
Q

-A crystalline solid for which the periodic and repeated atomic pattern extends through the entire crystal.
-Non grain boundaries.
-exists in nature but can be produced artificially
-quartz, salt, diamond, and topaz

A

Single crystal

56
Q

-Composed of more than crystal or grain
-grain boundaries
-different atomic orientations

A

Polycrystal

57
Q

Atomic hard-sphere model and reduced sphere model

A

Crystal structure

58
Q

3D array of points coinciding with atom positions

A

Lattice

59
Q

Basic structure unit of crystal structure that represents the symmetry of a crystal structure

A

Unit Cell

MEGR 1100 (1 decks)

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