Elements And The Periodic Table 22 Flashcards

1
Q

Isotope plutonium-238 used for batteries to power

A

Long-term space travel

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2
Q

As plutonium-238 decays,

A

It gives off heat that is converted into energy

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3
Q

If an atom has a charge, it’s called an

A

Ion

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4
Q

A negative charged ion aka

A

An anion

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5
Q

An anion results when an atom gains one or more

A

Electrons

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6
Q

A positively charged ion aka

A

A cation

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7
Q

A cation results when an atom loses or

A

Gives away one or more electron

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8
Q

A - and a + charge

A

Attract

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9
Q

Negative and negative charge

A

Repel

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10
Q

+ and + charges

A

Repel

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11
Q

Like repels

A

Like

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12
Q

A cation attracted to an

A

Anion

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13
Q

A positive ion repelled by

A

Another positive ion (cation)

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14
Q

Negative ion repelled by

A

Another negative ion (anion)

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15
Q

Neutral atoms _ each other

A

Neither attract nor repel

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16
Q

Periodic table structure is based on element’s

A

Mass

17
Q

Atomic mass is the weighted average based on

A

Relative abundance of isotopes

18
Q

_ reorganized Mendeleev’s table by atomic number, not mass

A

Henry Moseley

19
Q

Henry Moseley is a British

A

Chemist

20
Q

Anion example (c,n)

A

Chloride

Nitrate

21
Q

Anion example (s,p)

A

Sulfate

Phosphate

22
Q

Cation example (L, s, p)

A

Lithium

Sodium

Potassium