What are the element properties of gold?
Gold Properties
- Gold conducts heat and electricity.
- Gold is ductile: It can be drawn out into the thinnest wire.
- Gold is highly reflective of heat and light.
- Gold is prized for its beauty.
- Gold is malleable, so it can be flattened into extremely thin sheets.
What are 4 properties of iodine?
Properties. Iodine has a melting point of 113.5°C, a boiling point of 184.35°C, a specific gravity of 4.93 for its solid state at 20°C, a gas density of 11.27 g/l, with a valence of 1, 3, 5, or 7. Iodine is a lustrous blue-black solid which volatizes at room temperature into a violet-blue gas with an irritating odor.
What is the special property of iodine?
Iodine is a non-metallic, dark-gray/purple-black, lustrous, solid element. Iodine is the most electropositive halogen and the least reactive of the halogens even if it can still form compounds with many elements. Iodine sublime easily on heating to give a purple vapour.
What are the 5 chemical properties of gold?
Gold Properties
- Density : 19,300 kg per cubic metre.
- Melting point : 1337.33 K (1064.18 °C).
- Boiling point : 3129 K (2856 °C).
- Atomic number : 79.
- Nucleic protons : 79.
- Atomic weight : 197.
- Nucleic neutrons (normal) : 118.
Why is gold so expensive?
Gold’s value is ultimately a social construction: it is valuable because we all agree it has been and will be in the future. Still, gold’s lustrous and metallic qualities, its relative scarcity, and the difficulty of extraction have only added to the perception of gold as a valuable commodity.
What can iodine do?
Iodine is a mineral found in some foods. The body needs iodine to make thyroid hormones. These hormones control the body’s metabolism and many other important functions. The body also needs thyroid hormones for proper bone and brain development during pregnancy and infancy.