Periodic Table Flashcards

1
Q

Periodic Law

A

The law that states that when elements are organized by atomic number, they show a periodic repetition of properties

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2
Q

Group

A

The columns of the periodic table

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3
Q

Periods

A

The rows of a periodic table

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4
Q

Allotropes

A

The different forms of a element

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5
Q

What are the different properties of a metal?

A

Malleable, good conductors of heat & electricity, ductile, solid at room temperature (except for mercury), and lustrous in their pure form

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6
Q

What are the different properties of a nonmetal?

A

Brittle, bad conductors of heat & electricity, and not lusterous

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7
Q

What are the different properties of a metalloid?

A

Properties depend on the conditions

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8
Q

Where are the alkali metals located?

A

Group 1A

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9
Q

Where are the alkaline earth metals located?

A

Group 2A

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10
Q

Where are the halogens located?

A

Group 7A

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11
Q

Where are the noble gasses located?

A

Group 8A

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12
Q

What does malleable mean?

A

Able to be shaped with a hammer

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13
Q

What does ductile mean?

A

Able to be twisted into a wire

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14
Q

What does lustrous mean?

A

Shiny

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15
Q

What are valence electrons?

A

Electrons located in the outermost shell of an atom

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16
Q

What does electronegativity mean?

A

How strongly an atom attracts electrons when its in a compound

17
Q

What does ionization energy mean?

A

The amount of energy needed to remove an electron from its atom

18
Q

What does atomic radius mean?

A

Half of the distance between two nuclei of two atoms of the same element when they are joined together

19
Q

What does ion mean?

A

A charged atom

20
Q

What does cation mean?

A

A positively charged atom

21
Q

What does anion mean?

A

A negatively charged atom

22
Q

What is electrolysis used for?

A

Splitting a compound up into atoms

23
Q

Where are the transition metals located?

A

d-block, B group

24
Q

Where are the inner transition metals located?

A

f-block and actinides and lanthinides

25
Q

What does inert mean?

A

Not chemically reactive

26
Q

What is the most important element for modern life?

A

Silicon

27
Q

How do anions form?

A

An atom gains an electron

28
Q

How do cations form?

A

An atom loses an electron

29
Q

Does first ionization energy increase or decrease as you move left to right in a period? How about as you move down a group?

A

Increase; decrease

30
Q

Does atomic radius increase or decrease as you move left to right in a period? How about as you move down a group?

A

Decrease; increase

31
Q

Does electronegativity increase or decrease as you move left to right in a period? How about as you move down a group?

A

Increase; decrease

32
Q

Does ionic size increase or decrease as you move left to right in a period? How about as you move down a group?

A

Ionic size depends on if the ion is a metal or not, if it is a metal ion then it will generally be smaller, if it is a nonmetal then it will generally be smaller.