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Flashcardlet > Phy Sci chapter five > Flashcards

Phy Sci chapter five Flashcards

0
Q

Magnesium is located to the right of sodium because Magnesium has what

A

More protons

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1
Q

In Mendeleev’s periodic table, elements in each column had similar what

A

Properties

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2
Q

As you move from left to right across the periodic table, elements do what

A

Become less metallic

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3
Q

How was Mendeleev’s periodic table arranged

A

By increasing atomic masses

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4
Q

What is Mendeleev known for

A

Publishing the first periodic table

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5
Q

When did Mendeleev create a new row in his periodic table

A

When chemical properties were repeated

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6
Q

Mendeleev left gaps in his periodic table because

A

No known elements fit there

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7
Q

The law that states that the repeating chemical and physical properties of elements change periodically with the atomic numbers of the elements

A

Periodic law

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8
Q

A horizontal row of elements in the periodic table

A

Period

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9
Q

A vertical column of elements in the periodic table; elements in this share chemical properties

A

Group

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10
Q

What are the periodic trends in the periodic table the result of

A

Electron arrangement

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11
Q

What accounts for similar properties

A

Valence electrons

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12
Q

What is an element’s location in the periodic table related to

A

Electron arrangement

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13
Q

What kind of ions do group 1 form

A

Positiv

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14
Q

What kind of ions do group 17 form

A

Negative

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15
Q

What do elements in each category have

A

Similar properties

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16
Q

An element that is shiny and that conducts heat and electricity well

A

Metal

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17
Q

What are some properties of metals

A

Easily drawn into thin wires (ductile)
Easily shaped or formed (malleable)
Shiny

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18
Q

An element that conducts heat and electricity poorly

A

Nonmetal

19
Q

What are some properties of nonmetals

A

Poor conductors of electricity
Poor conductors of heat
Not malleable or ductile
Not shiny

20
Q

An element or compound that com dicta electric current better than an insulator does but not as well as a conductor does

A

Semiconductor (metalloid)

21
Q

What are some properties of semiconductors

A

Share properties with metals and nonmetals
Conduct electricity under certain conditions
Main components of chips in computers and in other electronic devices

22
Q

What does each element family have in common

A

They have the same number of valences electrons

23
Q

What are the 3 families of metals

A

Alkali metals
Alkaline-earth metals
Transition metals

24
Q

One of the elements of group 1 of the periodic table

A

Alkali metal

25
Q

One of the elements of group 2 of the periodic table

A

Alkaline-earth metal

26
Q

One of the metals that can use the inner shell before using the outer shell to bond

A

Transition metal

27
Q

What metals are very reactive

A

Alkali

28
Q

What are some properties of alkaline metals

A 
Soft 
Shiny 
Similar melting points
Similar boiling points 
Similar densities
29
Q

What metals form compounds that are found in limestone and in the human body

A

Alkaline-earth metals

30
Q

What are some properties of alkaline-earth metals

A

Hard
Dense
Strong
High melting points

31
Q

What metals are in the middle of the periodic table

A

Transition metals

32
Q

What are some properties of transition metals

A

Hardest of the metals
Densest of the metals
Highest melting points of the metals

33
Q

What are the 2 families of nonmetals

A

Noble gases

Halogens

34
Q

One of the elements of group 18 of the periodic table

A

Noble gas

35
Q

One of the elements of group 17 of the periodic table

A

Halogen

36
Q

What gases are relatively inert

A

Noble gases

37
Q

What do noble gases exist as

A

Single atoms instead of molecules

38
Q

Why are noble gases inert

A

Their s and p orbitals are filled

They do not form ions or compounds

39
Q

What nonmetals combine easily with metals to form salts

A

Halogens

40
Q

How do halogens become stable

A

The addition of a single electron

41
Q

What do halogens combine easily with

What do they form

A

Metals (especially alkali)

Salts

42
Q

How many other nonmetals are on the right side of the periodic table

A

6

43
Q

What can form many compounds

A

Carbon

44
Q

How many carbon-containing compounds are there

A

Millions

45
Q

Able to conduct heat and electricity under certain conditions

A

Semiconductors

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