Which sentence describes one characteristic of nonmetals? nonmetals are often brittle solids. nonmetals are often malleable. nonmetals often conduct electricity. nonmetals are often ductile.

Non metals are brittle solids.

Explanation:

The option A is correct,

Non metals are brittle solids.

It is the property of non metals. They can not be stretched into thin wire if stress is applied non metals brake down.

All other options are incorrect because,

B = Non metals are often malleable

It is the property of metals. Metals can be malleable into think sheets.

C = Non metals often conduct electricity.

It is the property of metals. Metals conduct electricity because of availability of free electrons.

D =  Non metals are often ductile.

It is the property of metals. They can stretched into thin wire.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

i think it is true since you can test the answer and can use observations to complete it.