Read the description.

shiny; ductile; solid at room temperature
Which of the elements best fits the description?

Helium (He)

Carbon (C)

Magnesium (Mg)

Sulfur (S)

sounds like the description of a metal

which one is metallic?

To determine which of the elements best fits the description, let's consider the given characteristics individually:

1. Shiny: This means the element should have a lustrous appearance.
- Helium (He) is a colorless and odorless gas, so it is not shiny.
- Carbon (C) can take on various forms such as graphite or diamond. Graphite is not shiny, but diamond is shiny. However, carbon in its pure form is not fundamentally shiny.
- Magnesium (Mg) is a silver-white metal that has a shiny appearance.
- Sulfur (S) is a yellow, brittle non-metal that is not shiny.

2. Ductile: This means the element should be capable of being drawn or stretched into a thin wire without breaking.
- Helium (He) is a gas, so it is not ductile.
- Carbon (C) can exist as graphite, which is brittle and not ductile.
- Magnesium (Mg) is ductile as it can be drawn into thin wires.
- Sulfur (S) is brittle and not ductile.

3. Solid at room temperature: This means the element should exist in a solid state under standard room temperature conditions.
- Helium (He) is a gas at room temperature, so it is not solid.
- Carbon (C) can exist as a solid, such as diamond or graphite.
- Magnesium (Mg) is a solid at room temperature.
- Sulfur (S) is also a solid at room temperature.

Based on these characteristics, the element that best fits the description of being shiny, ductile, and solid at room temperature is Magnesium (Mg).