Chem final- Exam 2 Flashcards

1
Q

diamagnetic

A

-Only paired electrons
-Slightly repelled

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2
Q

paramagnetic

A

-Unpaired electrons
-Attracted

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3
Q

Isoelectronic

A

-Atoms that have the same number of electrons
-Diff protons

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4
Q

Ions electronic configuration

A

-S electrons removed first

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5
Q

Effective nuclear charge

A

-Actual nuclear charge experienced by an electron
-Charge of nucleus + charge of shielding electrons

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6
Q

Shielding

A

-Electrons in lower energy orbitals screen it from full effects of nuclear charge

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7
Q

Penetrance

A

-Electron in an orbital might penetrate to get closer to the nucleus

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8
Q

Atomic radius trend

A

-Bottom left: Biggest
-Top right: Smallest

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9
Q

Ionization energy trend

A

-Bottom left: Lowest
-Top right: Highest

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10
Q

Ionization energy

A

-Energy required to remove an electron from an atom in gas state (+ values)

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11
Q

Lattice energy

A

-Energy of forming a lattice
-Higher charges = Higher lattice energy
-Bigger distance = Lower lattice energy
-Smaller ions can get closer together
-negative = good (all top)

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12
Q

Higher effective nuclear charge (IA)

A

Higher Ionization energy

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13
Q

Electron affinity

A

-Energy change that occurs when an electron is added to an atom in gas state (- values)

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14
Q

Electron affinity trend

A

-Becomes more negative as you go from left to right

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15
Q

Higher effective electron affinity (EA)

A

More negative electron affinity

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16
Q

First row reactivity

A

-Increase as you move down

17
Q

Coloumbs law

A

-Like charges repel
-Bigger distance decreases attraction
-Bigger the charge, bigger the force (attraction/repulsion)
-Charges more important