The group 7 elements are all reactive non-metals. They react with metals to form metal halides. Reactivity decreases down the group.
What name is given to elements in group 7?
What is the physical state of iodine at room temperature?
What is the formula of chlorine gas?
Astatine is below iodine in group 7. What colour would you expect astatine to be?
What is the trend in reactivtity of Group 7 elements?
Reactivity increases down group 7
Reactivity decrease down group 7
Reactivity stays the same down group 7
Iron reacts with chlorine to form iron(III) chloride. What is the formula of iron(III) chloride?
What is seen if chlorine is added to potassium iodide solution?
The solution turns yellow
The solution turns green
The solution turns red-brown
When a group 7 element reacts, it often gains an electron. What type of particle is produced?
In a displacement reaction, iodide ions lose electrons to form iodine. What name is given to this process? - Higher
In a ionic equation, what name is given to ions that appear unchanged on both sides of the equation? -