Learning Outcomes
At the end of this section, you should be able to:
•describe the Group 0 elements as unreactive;
•describe the lack of reactivity of the noble gases in terms of electronic structure.
•describe the Group 0 elements as unreactive;
•describe the lack of reactivity of the noble gases in terms of electronic structure.
Group 0 Elements- Noble Gases
•Non-metals
•Form only 1% of the Earth’s atmosphere
•Also known as noble or inert gases
Physical Properties
Noble gases
• are colourless and odourless gases at room temperature
• have very low melting points and boiling points
• are insoluble in water
• are colourless and odourless gases at room temperature
• have very low melting points and boiling points
• are insoluble in water
Chemical Properties
Noble gases have stable electronic structures. Hence, they
• are chemically unreactive;
• do not gain, lose or share electrons;
• do not form compounds;
• exist as monatomic gases (single atoms).
• are chemically unreactive;
• do not gain, lose or share electrons;
• do not form compounds;
• exist as monatomic gases (single atoms).