Distinguish between gold and copper
There are many differences that can help distinguish between copper and gold, including the following:
- Copper reacts with acids. When concentrated acid is placed on it, bubbles appear or its color changes. As for gold, it will not undergo any change when acid is placed on it.
- Copper metal reacts with oxygen found in nature, and this reaction leads to oxidation and thus distortion of copper metal and changing its color, while gold is not subject to oxidation.
- Gold is distinguished from copper in price, as the price of gold is very expensive compared to the price of copper.
- Gold is characterized by the presence of carats on it, which is a measurement system used to indicate the purity of gold. Pure gold is 24 carats, where the carat is found in a hidden place on the piece, and most of the time it is present at the bottom or inside of the piece, while copper does not have the number of carats on it and in some cases Sometimes the word “brass” is placed on the copper piece.
Gold properties
Gold is known as a chemical element with a bright yellow color and is expensive. Real gold has several advantages and characteristics, including the following:
- Attractive color and luster.
- Flexibility.
- It exists in nature in a relatively pure form.
- Its atomic number is 79.
- Its atomic mass is 196.967.
- The melting point of gold is 1063 degrees Celsius.
- The boiling point of gold is 2966 degrees Celsius.
Copper properties
Copper ranked third in terms of consumption in the world after iron and aluminum, according to the US Geological Survey, as it is used in the manufacture of electrical wires, telecommunications cables, and other uses. Among its most important characteristics are the following:
Read also:Rare gems- The atomic number of copper is 29.
- The atomic symbol for copper is Cu.
- The melting point of copper is 1084.62 degrees Celsius.
- The boiling point of copper is 2927°C.
