The Halogens Flashcards
What group are tha halogens in?
Group 7
What colour is chlorine at room temperature?
Pale green gas
What colour is bromine at room temperature?
Dark red liquid
What colour is iodine at room temperature?
Grey solid
What are diatomic elements?
Elements that are found it atoms of two
Why are diatomic elements found in 2s?
If the atom is on its own it is unstable
What is iodine used for?
Disenfectants
Printing inks
Photographic chemical
What is bromine used for?
Agricultural purposes
What is fluorine used for?
Production of nuclear materials
What is clorine used for?
Disenfecting water
What are the formulaes for the halogens?
Cl2, F2, Br2, I2, At2
When a halogen reacts with a metal, what is formed?
A halide
Complete the equation: chlorine + iron –>
iron chloride
Complete the equation: bromine + iron –>
iron bromide
Complete the equation: iodine + iron –>
iron iodide
