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4.5.1 - The Periodic Table > 4.5.1 Periodic Table > Flashcards

4.5.1 Periodic Table Flashcards

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Periodic Table flashcards
1
Q

What is the maximum number of electrons in the lowest energy level?

A

2

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2
Q

In what order are elements in the modern periodic table arranged?

A

Atomic number

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3
Q

What is the name for the vertical columns in the periodic table?

A

Groups

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4
Q

Why do elements in the same group have similar properties?

A

They have the same number of electrons in their outer shell

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5
Q

What does an element’s period number tell us about its atoms?

A

The number of shells in an atom

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6
Q

In what order were elements in early periodic tables arranged?

A

Atomic mass

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7
Q

Give one reason why Mendeleev’s periodic table correctly grouped the elements.

A

He left gaps for undiscovered elements

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8
Q

What are isotopes?

A

Atoms of the same element but with a different mass number

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9
Q

Where in the periodic table are metals found?

A

To the left

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10
Q

What is a metal?

A

An element which forms a positive ion

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11
Q

What is a positive ion?

A

A charged atom, which has lost electrons

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12
Q

Would an element with 8 electrons be a metal or non-metal? Explain your answer.

A

Non-metal – it would have 6 electrons in its outer shell so would be in group 6

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13
Q

What are elements that do not form positive ions known as?

A

Non-metals

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14
Q

Why is hydrogen found on its own in the periodic table and not in a group?

A

It forms a positive ion but is a non-metal

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15
Q

What is a negative ion?

A

A charged atom, which has gained electrons

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16
Q

Give 3 properties of metals.

A

Sonorous, malleable, ductile, shiny, thermal and electrical conductors

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17
Q

What are the elements in group 0 known as?

A

Noble gases

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18
Q

What is similar about the electronic structure of all the noble gases?

A

Full outer shell of electrons

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19
Q

Would xenon make a good fuel? Explain your answer.

A

No – it would not react with oxygen

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20
Q

What is a difference between the electronic structure of the noble gases?

A

They have different numbers of shells

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21
Q

Describe the trend in boiling points of the noble gases.

A

Increase, as you go down the group

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22
Q

The group 0 elements exist as monoatomic gases. What does this mean?

A

They exist as single atoms, not joined to anything else

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23
Q

Give two properties of all the noble gases.

A

Inert, gases at room temperature

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24
Q

Explain the properties given in Q7.

A

Full outer shells, low boiling point

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25
Q

Why does sodium float on water?

A

It is less dense than water

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26
Q

What gas is given off when Group 1 metals react with water?

A

Hydrogen

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27
Q

What are the Group 1 elements also known as?

A

Alkali metals

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28
Q

Why are they known as this?

A

The react with water to produce an alkaline solution

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29
Q

Describe the trend in reactivity as you go down Group 1.

A

Increases

30
Q

Why do the elements in Group 1 share similar properties?

A

They all have one electron in their outer shell

31
Q

Why do alkali metals form +1 ions?

A

They lose one electron from their outer shell

32
Q

What are Group 7 elements also known as?

A

Halogens

33
Q

What is a diatomic molecule?

A

A molecule containing 2 atoms

34
Q

What is the charge on a halide ion?

A

-1

35
Q

What sort of compounds do halogens form with other non-metals?

A

Molecular compounds which are gases or liquids

36
Q

What is the difference between a halide and a halogen?

A

Halide is a -1 ion, Halogen is a neutral atom

37
Q

Describe the trend in reactivity down Group 7.

A

Decreases

38
Q

Why do the elements of Group 7 get less reactive down the group?

A

The outer shell is further from the nucleus, becomes harder to attract an extra electron for a full outer shell

39
Q

Why will iodine not displace bromine from magnesium bromide?

A

Iodine is less reactive than bromine

40
Q

What gas is given off when lithium reacts with water?

A

Hydrogen

41
Q

Name 3 noble gases.

A

Helium, Neon, Argon, Krypton, Xenon

42
Q

Which group does iodine belong to?

A

Group 7 – Halogens

43
Q

Which group does an element belong to if it has 2 electrons in its outer shell?

A

Group 2

44
Q

An element in period 4 has how many electron shells?

A

4

45
Q

Which halogen is the most reactive?

A

Fluorine

46
Q

What is a non-metal?

A

An element which forms negative ions

47
Q

What term matches this definition? A group 1 element

A

Alkali metal

48
Q

What term matches this definition? Dissolved in water, in solution

A

Aqueous

49
Q

What term matches this definition? Number of protons in an atom

A

Atomic number

50
Q

What term matches this definition? Substance made of two or more elements chemically joined

A

Compound

51
Q

What term matches this definition? Allows the transfer of heat or electricity through the material

A

Conductor

52
Q

What term matches this definition? Able to be pulled into wires

A

Ductile

53
Q

What term matches this definition? The arrangement of electrons in energy levels in an atom

A

Electron configuration

54
Q

What term matches this definition? Substance made of only one type of atom

A

Element

55
Q

What term matches this definition? The orbit of electrons at different distances around the nucleus

A

Energy level

56
Q

What term matches this definition? A vertical column in the Periodic table

A

Group

57
Q

What term matches this definition? The ion of a halogen

A

Halide

58
Q

What term matches this definition? A group 7 element

A

Halogen

59
Q

What term matches this definition? Does not allow the transfer of heat or electricity through the material

A

Insulator

60
Q

What term matches this definition? A charged atom, after losing or gaining electrons

A

Ion

61
Q

What term matches this definition? Compound made of oppositely charged metal and non-metal ions

A

Ionic compound

62
Q

What term matches this definition? Atoms with the same atomic number but different mass

A

Isotope

63
Q

What term matches this definition? Can be bent or hammered into shape

A

Malleable

64
Q

What term matches this definition? The number of protons and neutrons in an atom

A

Mass number

65
Q

What term matches this definition? The creator of the modern Periodic table

A

Mendeleev

66
Q

What term matches this definition? Compounds which contain singular molecules, e.g. water as H2O

A

Molecular compound

67
Q

What term matches this definition? A group 0 element

A

Noble gas

68
Q

What term matches this definition? A horizontal row in the Periodic table

A

Period

69
Q

What term matches this definition? A physical or chemical characteristic

A

Property

70
Q

What term matches this definition? The mass of an element taking into account the relative abundancy of its isotopes

A

Relative atomic mass

71
Q

What term matches this definition? Produces a ringing sound when hit

A

Sonorous

4.5.1 - The Periodic Table (1 decks)

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