Question

1. sulfur is not ductile, and not malleable. is sulfur a metal, nonmetal, or metalloid? (a) metal (b) metalloid (c) nonmetal (d) none of the above are correct 15. which is true about metals? (a) they are ductile (b) they are malleable (c) they are good conductors of electricity and heat (d) all of the above 16. silicon (#14) can conduct electricity sometimes, but not other times. it is not malleable. what is true about silicon? (a) it is a metal (b) it is a metalloid (c) it is a nonmetal (d) it is not found anywhere on earth 17. what is o? (a) metal (b) metalloid (c) nonmetal (d) none of the above 18. the only metal that is a liquid at room temperature is ____. (a) copper (b) silver (c) mercury (d) sodium part b: written response 1. most of the elements that form a zigzag line in the periodic table belong to one major group. what is that group, and what kinds of properties do its elements tend to have? periodic table of the elements (top section)

Explanation:

1. Sulfur lacks the physical properties of metals (ductility, malleability). Non - metals generally do not have these properties.
2. Metals are known for being ductile (can be drawn into wires), malleable (can be hammered into sheets), and good conductors of electricity and heat.
3. Silicon has properties of both metals and non - metals (semiconductor property - can conduct electricity sometimes but not always, non - malleable). Metalloids have such intermediate properties.
4. Oxygen (\(O\)) is a non - metal. It is a gas at room temperature, not shiny, and does not have metallic properties.
5. Mercury (\(Hg\)) is the only metal that is liquid at room temperature. Copper, silver, and sodium are solids at room temperature.

For the written response:
The elements forming a zig - zag line in the periodic table are metalloids. Metalloids have properties intermediate between metals and non - metals. They can be semiconductors (e.g., silicon), have some metallic luster but are not as malleable or ductile as metals.

Answer:

1. C. Nonmetal
2. D. All of the above
3. B. It is a metalloid
4. C. Nonmetal
5. C. Mercury

Written response: The group is metalloids. Their elements tend to have properties intermediate between metals and non - metals, such as being semiconductors, having some metallic luster but lacking full metallic malleability and ductility.