✔ 最佳答案
Carbon is clearly a non-metal. It exists in solid state at room temperature. The melting point of carbon is 3500'C and boiling point is 4827'C.
See the following web-page for reference
http://www.canadaconnects.ca/chemistry/1009/
You could find lots more information about carbon on the web, just by typing the key wors "carbon properties".