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Beschreibung
Quiz von Jamie Caffey, aktualisiert more than 1 year ago
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Erstellt von Jamie Caffey
vor mehr als 9 Jahre
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Frage 1
Frage
In the 19th century, did scientists know the structure of atoms?
Antworten
- True
- False
Frage 2
Frage
In 1863, Newlands proposed his...
Antworten
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Law of octaves
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Theory of evolution
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Law of structures
Frage 3
Frage
What did the law of octaves state?
Antworten
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8 keys in a piano is an octave
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Similar properties are repeated every 8th element
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8 elements are a group
Frage 4
Frage
Why was Mendeleev's periodic table better than Newlands?
Antworten
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He left gaps for undiscovered elements
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He discovered the missing elements
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He discovered the structure of an atom
Frage 5
Frage
Elements are arranged in the periodic table in order of their atomic numbers
Antworten
- True
- False
Frage 6
Frage
Why do elements in the same group have similar chemical properties?
Antworten
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They follow Newlands law of octaves
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Their atoms have the same number of electrons in their outer shell
Frage 7
Frage
When metals react they lose electrons so...
Antworten
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The reactivity of metals in a group increases going down the group
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The reactivity of metals in a group decreases going down the group
Frage 8
Frage
When non-metals react they gain electrons so the reactivity of non-metals decreases going down the group
Antworten
- True
- False
Frage 9
Frage
Group 1 elements are called the...
Antworten
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Acid metals
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Alkali metals
Frage 10
Frage
They react readily with...
Antworten
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Air and water
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hydrogen
Frage 11
Frage
Alkali metals have low melting and boiling points that decrease going down the group
Antworten
- True
- False
Frage 12
Frage
Alkali metals react with water to produce hydrogen gas and...
Antworten
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Oxygen
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A metal hydroxide
Frage 13
Frage
Group 1 metals form ionic compounds in reactions
Antworten
- True
- False
Frage 14
Frage
Why does reactivity increase going down group 1?
Antworten
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The outer electron is less strongly attracted to the nucleus as the number of shells increase and the atoms get larger
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The outer electron is more strongly attracted to the nucleus as the number of shells increase and the atoms get larger
Frage 15
Frage
Transistion elements are...
Antworten
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Bad conductors of heat
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Malleable, ductile and good conductors of heat
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Not malleable and hard to bend
Frage 16
Frage
Do transition elements react slowly or quickly with oxygen and water?
Antworten
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Quickly
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Slowly
Frage 17
Frage
Are transition elements useful as building materials?
Antworten
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No because they are weak
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Yes because they are strong and dense
Frage 18
Frage
Compounds of transition elements are...
Antworten
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Dull colours
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Brightly coloured
Frage 19
Frage
Transition elements form positive ions
Antworten
- True
- False
Frage 20
Frage
Which group are the halogens?
Antworten
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Group 1
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Group 4
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Group 7
Frage 21
Frage
Fill in the gap: Fluorine is a ........................................... at room temperature
Antworten
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Pale yellow gas
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Yellow solid
Frage 22
Frage
Chlorine is a green gas at room temperature
Antworten
- True
- False
Frage 23
Frage
Bromine is a green liquid at room temperature
Antworten
- True
- False
Frage 24
Frage
Iodine is a grey solid at room temperature that easily vapourises to a violet gas
Antworten
- True
- False
Frage 25
Frage
How do halogens bond with metals and non-metals?
Antworten
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Metals: Form an ionic compound Non-metals: Bond covalently to form molecules
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Metals: They don't bond with Non-metals: Form an ionic compound
Frage 26
Frage
Why does the reactivity of the halogens decrease going down group 7?
Antworten
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The attraction of the outer electrons to the nucleus increases as the number of occupied shells increase
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The attraction of the outer electrons to the nucleus decreases as the number of occupied shells increase
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