They do not conduct electricity 2.They are not malleable 3.They have low melting and boiling point.4.They are bad conductors of heat.
Non metals
Non metals
non metals
all are non metals
My opinion would be metal. Since non metals are brittle and dull, I disagree with the non-metals.
They are in between the metals and non metals
Selenium is a nonmetal because it lacks the physical and chemical properties of metals. It tends to gain electrons in reactions rather than losing them like metals, and it is brittle in solid form rather than malleable and ductile like metals. Additionally, selenium is a poor conductor of heat and electricity, unlike metals.
The most reactive non metals are Halogens which may combine most of the metals as well as non metals.
Non-metals, they are all gases.
In general, non metals are more electronegative
Non-metals
One characteristic of non-metals is that they are generally gaseous at room temperature. Non-metals will also typically bond with metals easily.