I'm pretty sure all elements have a freezing temperature at standard pressure.
Gold (Au) is a metallic element and is solid at room temperature and is found in its elemental form in nature.
Helium but it is noble gas. Lithium is the lightest solid element that found in natural form.
Lead (Pb) is a soft solid metallic element.
Sulfur
Sulfur
Sulfur
Sulfur is a yellow element that smells of rotten eggs.
Sulfur is a solid yellow element that burns to form sulfur dioxide (SO2), which dissolves in water to form sulfuric acid (H2SO4).
The element present in a violet gas form is iodine. When iodine is heated, it sublimes directly from a solid to a gas, producing a distinctive violet vapor.
The "pure element form" of boron is a meteorite. Boron isn't very reactive...but since it's formed by cosmic rays it isn't very abundant either.
The element you are describing is sulfur. It is a non-metal, and has a distinct yellow color, is brittle in its solid form, and poor conductor of electricity. Additionally, sulfur is not magnetic and is a solid at room temperature.
Ice is the solid form of water, H2O which has the two elements hydrogen and oxygen. Carbon on its own is in fact an element.