Game

Below is a summary of the trend in electrical and thermal conductivity of period 3 elements. Answer the questions below after studying the table.
i) The metals sodium, magnesium and alluminium are good conductors of heat and electricity because
Click on the correct answer.

Element	Na	Mg	Al	Si	P	S	Cl	Ar
Electrical and thermal conductivity	Good	Good	Very Good	Semi-Conductor	Poor	Poor	Poor	Poor

They contain ions in their structure.

They have delocalised electrons in their structure.

They have covalent bonds in their structure