19. The properties of this type of element are:
a.
it is a semi-conductor, it is brittle, and...
19. The properties of this type of element are:
a.
it is a semi-conductor, it is brittle, and it can exist c. it is a semi-conductor, it is shiny, and has a low
in all three states.
melting point
b. it is a bad conductor, it is shiny, and it is a gas. d. it is a bad conductor, has a low melting point, and
can exist in all three states.
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