Exam 3 Flashcards

1
Q

The ease with which the first valence shell electron can be removed from an atom is called the atom’s

A

ionization energy

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2
Q

is amount of energy required or released by the addition of an electron to the neutral atom.

A

electron affinity

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3
Q

ionic transition metal oxides (with an oxidation number of +1 to +3) are

A

basic. That is, they will react with aqueous acids to form solutions of salts and water.

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4
Q

the oxides with oxidation numbers of +5, +6, and +7 tend to be

A

acidic and react with solutions of hydroxide ions to form salts and water.

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5
Q

the changes that occur as you go down the alkali metal group

A

All have a single electron in an ‘s’ valence orbitalTheir melting points decrease (Why?)Their densities increaseThey become softerThey become more reactive (Why?)The ionization energy decreases (first ionization energy)

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6
Q

Compared with the alkali metals, the alkaline earth metals are typically:

A

hardermore densemelt at a higher temperature

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7
Q

Noble gases all have similar properties that include:

A

They are all considered non-metals. They are all colorless. They are all monatomic. They are all non-reactive.

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8
Q

lattice energy will always be what type of value

A

positive

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9
Q

a measure of the attraction an atom has for bonding electrons.

A

electronegativity

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10
Q

Breaking bonds requires energy

A

endothermic

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11
Q

making bonds releases energy

A

exothermic

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12
Q

what does VSPER stand for

A

Valence-Shell Electron-Pair Repulsion

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