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Chemistry > Groups in a Periodic Table > Flashcards

Groups in a Periodic Table Flashcards

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1
Q

What is group 1 of the periodic table called?

A

alkali metals

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2
Q

What do alkali metals have in common?

A

physical and chemical properties

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3
Q

What are physical properties of an alkali metal?

A

are soft
low melting points
low densities

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4
Q

What are the chemical properties of alkali metals?

A

have one electron in their outer shell

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5
Q

What happens when an alkali reacts with water?

A

produces a metal hydroxide and hydrogen

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6
Q

Why does the reactivity of group 1 increase as you go down the group

A

atoms are larger
outer electron is further from nucleus
outer electron is lost more easily

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7
Q

What does group 7 contain?

A

non metal elements

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8
Q

What is Group 7 also called?

A

the halogens

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9
Q

What are the physical properties of group 7?

A

joined by a single covalent bond

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10
Q

Why does the melting and boiling ponds increase going down group 7?

A

molecules become larger
more energy
intermolecular forces become stronger

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11
Q

What are the chemical properties of group 7?

A

all have seven electrons in outer shell

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12
Q

What happens when halogens react with metals?

A

produce salt

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13
Q

How does halogens react with hydrogen?

A

produce compounds called hydrogen halides

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14
Q

How does fluorine react with hydrogen?

A

explodes in the cold and dark

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15
Q

How does Chlorine react with hydrogen?

A

Explodes with a flame or in sunlight

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16
Q

How does Bromine react with hydrogen?

A

Vigorous reacting with burning hydrogen

17
Q

How does Iodine react with hydrogen?

A

Very slow reaction when heated strongly

18
Q

What is the chemical test for chlorine?

A

Damp litmus paper is bleached white when placed in chlorine

19
Q

What are halogens displacement reactions?

A

A more reactive halogen can displace a less reactive halogen from solutions of its salts

20
Q

How can you determine a reactivity series?

A

can be produced by attempting some
displacement reactions

21
Q

What is the trend of group 7

A

it’s atoms outer shells gain an electron and form negatively charged ions (anions)

22
Q

What does Group 0 contain?

A

non metal elements

23
Q

What is group 0 also called?

A

noble gases

24
Q

What are the boiling points of noble gases?

A

low

25
Q

What are the physical properties going down group 0?

A

the atoms become larger
more energy is needed to overcome

26
Q

What are chemical properties of the noble gases?

A

they are extremely unreactive

27
Q

What are properties and uses of noble gases?

A

they have low densities
they are not flammable

Chemistry (7 decks)

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