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