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Revision quiz C2 Flashcards | StudBud
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Revision quiz C2
Revision quiz C2
19 terms
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#gcse #chemistry #ocr #21stcentury #elements #periodictable #halogens #noblegases #newspecification
Flashcards
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Questions
19
Answers
1
The reason that noble gases are so unreactive is because....
they have one electron in their outer shell
they have two electrons in their outer shell
they have eight electrons in their outer shell
They have seven electrons in their outer shell
2
Which of these elements has two electrons in its outer shell?
At
Pb
Cl
Ba
3
If bromine dissolved in water is added to potassium chloride, you will see...
green due to bromine displacement
no colour change
purple due to bromine displacement
red due to bromine displacement
4
Dobereiner organised the elements into...
groups
periods
octaves
triads
5
Mendeleev did NOT organise the periodic table using...
Gaps for missing elements
Increasing atomic mass
Increasing atomic number
Groups
6
Iodine is more reactive than chlorine.
False
True
7
If chlorine dissolved in water is added to potassium bromide, you will see...
no colour change
green due to bromine displacement
red due to bromine displacement
purple due to bromine displacement
8
Which of the following will have the highest boiling point and density?
Argon
Neon
Radon
Xenon
9
The electron shell diagrams represents an atom of...
neon
potassium
sodium
fluorine
10
The element with the electron configuration 2.8.7 is....
argon
chlorine
neon
fluorine
11
Which scientist discovered the noble gases?
JJ Thomson
William Rowland
Ernest Rutherford
William Ramsay
12
Sodium has how many neutrons?
11
13
12
13
Which sub-atomic particle has a mass of 1 and no charge?
neutron
quark
electron
proton
14
Which halogen is a grey solid that turns into a purple gas when heated?
fluorine
bromine
iodine
chlorine
15
Rubidium is less reactive than sodium.
True
False
16
Fill in the blank: 2Na + 2H
2
O --> ________ + H
2
2NAOH
naoh
2NaOH
NaOH
17
Which of these are NOT noble gases?
Helium
Neon
Chlorine
Argon
18
Which scientist proposed the 'plum pudding' model of the atom?
JJ Thomson
John Newlands
Ernest Rutherford
Ernest Dalton
19
Spot the odd one out
Thomson
Newlands
Mendeleev
Dobereiner
