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WorksheetsHalogens-Rafflesia
Total questions: 20
Worksheet time: 10mins
What is ionization energy?
Energy needed to remove one electron from an atom.
Energy needed to add one electron from an atom.
Energy needed to remove one proton from an atom.
Energy needed to add one proton from an atom
What bonds can halogens form?
Covalent only
Covalent and ionic
Ionic only
None of the above
What is Iodine's atomic number?
48
36
50
53
What is the chemical symbol for astatine?
As
AT
At
A
What is another name for the group 7 elements?
Halogens
Transition metals
Actinide
Lanthanide
Which is the lightest halogen?
Chlorine
Bromine
Fluorine
Iodine
Which is a solid at room temperature?
Chlorine
Iodine
Astatine
Bromine
Which is the most radioactive?
Bromine
Iodine
Astatine
Fluorine
How many elements are there in group 7?
6
5
7
9
Which element has the highest atomic number in group 7?
Astatine
Fluorine
Bromine
Chlorine
Which element is not included into drinking water?
Chlorine
Fluorine
Bromine
Iodine
Are the elements in group 7 metals?
Yes
No
Does the elements become more reactive as you go down the group?
No
Yes
Which statement is correct?
Melting and boiling points increase as you go down the group.
Only melting point increases as you go down the group.
Only boiling point increases as you go down the group.
Melting and boiling points decrease as you go down the group.
Which halogen is a grey solid that turns into a purple gas when heated, and is used to sterilise wounds?
Bromine
Chlorine
Iodine
Astatine
What will happen when iodine solution is added to a solution of potassium bromide?
No reaction.
There will be an explosion.
Bromine is formed.
Potassium and iodine are formed
Which is the correct ionic equation for the reaction of chlorine with potassium bromide?
Cl2 + 2Br- → Br2 + 2Cl-
Cl2 + Br- → Br2 + Cl-
Br2 + 2Cl- → Cl2 + 2Br-
What does bromine look like?
A green gas
A purple/black solid
a fuming red-brown liquid
Which is not an element of the halogens?
At
Xe
Br
Cl
What is the formula of iodine?
I
I3
I2
I-
