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AQA 9-1 Atoms and the Periodic Table Flashcards | StudBud
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AQA 9-1 Atoms and the Periodic Table
AQA 9-1 Atoms and the Periodic Table
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24 questions covering topics in the new 9-1 AQA syllabus for GCSE Chemistry
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1
Why did Mendeleev swap the order of some of the elements in his periodic table?
To put them in alphabetical order
To make sure properties fitted elements in the same group
To put them in order of increasing atomic weight
2
What element is in Period 2, Group 7?
Radium
Fluorine
Helium
Chlorine
3
What name is given to atoms that have the same number of protons but differing neutrons?
Twins
Allotropes
Isotopes
4
What is present at the centre of an atom?
The electrons
The nucleus
The core
5
What will happen when iodine solution is added to a solution of potassium bromide?
Bromine is produced
No reaction
Solid iodine is produced
6
What name is given to the elements in Group 1?
The noble gases
The halogens
The alkali metals
7
Why must the elements in Group 1 be stored under oil?
They are poisonous
They react quickly with oxygen in the air
They are very valuable
8
Which halogen is a liquid at room temperature?
Bromine
Iodine
Chlorine
9
What is the electron configuration of calcium?
2,8,8,1
2,8,8
2,8,8,2
10
What is the maximum number of electrons that can fit into the second shell?
8
18
2
11
Which halogen is a grey solid that turns into a purple gas when heated?
Chlorine
Iodine
Bromine
12
Which is the correct ionic equation for the reaction of chlorine with potassium bromide?
Br2 + 2Cl- → Cl2 + 2Br-
Cl2 + Br- → Br2 + Cl-
Cl2 + 2Br- → Br2 + 2Cl-
13
What would you expect to see when a piece of potassium is placed into a large bowl of water?
Floats, moves around slowly
Sinks, no reaction
Floats, fizzes, moves around quickly, sparks
14
Which of these elements has three electron shells?
Silicon
Potassium
Boron
15
What atom has the electron configuration 2,8,5?
Silicon
Aluminium
Carbon
Phosphorus
16
Which atom is the most stable: F, Ne, Na?
Ne
F
Na
All the same
17
Which sub-atomic particle has a mass of 1 and no charge?
Proton
Neutron
Electron
18
What is produced when sodium reacts with water?
Sodium oxide
Sodium hydroxide and hydrogen
Sodium chloride
19
What name is given to elements in Group 7 on the periodic table?
Noble gases
Halogens
Alkali metals
20
Which is the most reactive element in Group 7?
Fluorine
Astatine
Chlorine
21
What was the significance of Mendeleev leaving gaps in his periodic table?
He didn't know where to put some elements
He wanted to leave some work for others to do when he died
The elements had not yet been discovered
22
Which of these elements has two electrons in its outer shell?
At
Ba
Pb
23
What happens when chlorine solution is added to a solution of sodium bromide?
Bromine is produced
An explosion
No reaction
24
What happens to the melting and boiling points of the halogens as you go down the group?
Decrease
Increase
Stay the same
