Question

7.Which of the following are the properties of nonmetals?
(i)They have low densities
(ii) They have low melting points
(iii) They are poor conductors of electricity
(1 Point)
Only (i) and (ii)
Only (ii) and (iii)
Only (i) and (iii)
(i) ,(ii) and (iii)​

Answer 1

Answer:

➡Nonmetals have high ionization energies and electronegativities.

➡They are generally poor conductors of heat and electricity.

➡Solid nonmetals are generally brittle, with little or no metallic luster.

➡Most nonmetals have the ability to gain electrons easily.

➡They have low melting point and boiling point.....

➡ Hope it will helps you........

please mark as brainliest.....

Answer 2

Answer:

(1),(2)and(3)

Explanation:

generally non metals have low melting points.Ex-sulphur.

but there is an exception-diamond

generally non metals have low densities that's why they are not as much strong as metals.

Ex-phosphorus.but diamond is an exception here too

they are poor conductors of heat and electricity as we have already seen that wires are usually made of copper and aluminium because they are good conductors of heat and electricity while non metals have not the ability of passing electricity.that's why they are poor conductors of electricity but there is also an exception.

the exception here is graphite