Explaining Group 1 & 7

Question 1

Molten compounds of metals with non-metals conduct electricity, what is this evidence of?

Answer 1

That they are made up of charged particles called ions as when liquid they are free to move so the ions must move to the electrodes to complete the circuit and conduct electricity.

Question 2

What is an ion?

Answer 2

An ion is an atom that has gained or lost an electron/electrons and so it has a complete outer shell and a positive or negative charge

Question 3

What kind of compound is a compound of group 1 and group 7? What do they form?

Answer 3

An ionic compound is a compound of a non-metal and metal. They form crystals as they are arranged in a pattern called a regular lattice.

Question 4

What happens to the ions when an ionic crystal melts or dissolves in water? and then what if an open circuit is put into the solution?

Answer 4

When dissolved in water the ions become free to move and so when a circuit is put in the solution the ions are able to move independently around the solution to complete the circuit as they are charged and able to freely morve