S2 Unit 1 Atomic Structure and Periodic Table / 5 of 16 Your teacher gives you a sample of an unknown element which is sealed in a glass tube at room temperature. At the bottom of the tube
there is a small amount, a few drops at the most, of a red-black filmy liquid, and above it is a red vapor. What is this element likely to be?
(DOK 1)
O A. non-metal
Exhi
O
B. metal
O
C. metalloid
INTL
12:34
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