phosphorus
Zinc is only a metallic chemical element.
Sodium is a compound.
This is the atom of a chemical element, unbreakable by chemical methods.
A chemical that is not found in chloroplasts is hemoglobin, which is a protein found in red blood cells that is responsible for transporting oxygen in the bloodstream. Chloroplasts primarily contain chemicals involved in photosynthesis, such as chlorophyll and various enzymes.
Oxygen is the most commonly found element as part of a compound with another element. This is because oxygen has a high electronegativity and readily forms chemical bonds with other elements. Additionally, oxygen is abundant in the Earth's atmosphere, making it readily available for chemical reactions.
No, it is not. It is a chemical element which was discovered only in 1898.
Mendelevium is an artificial, man made chemical element.
Neptunium is an artificial chemical element but neptunium can be found also in the nature as a result of decay processes in uranium ores, only in ultratraces.
A chemical element is a substance with only one type of atom in it (e.g. only carbon atoms). The known chemical elements are arranged on the Periodic Table of the Elements. Every element has it's own chemical symbol, which is used as a scientific shorthand for quick elemental notation (e.g. Carbon = C, Promethium = Pm).
The essential chemical that can only be obtained from consuming protein is amino acids.
Nitrogen is an element. It can be found in the periodic table.
Only one chemical element begins with the letter X. Xenon is a chemical element. It has the symbol Xe. It is the only chemical element that begins with the letter x.
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Hassium is an artificial chemical element and can exist only in very special nuclear physics laboratories.
Ununhexium is an artificial chemical element; it is prepared only in nuclear physics laboratories using particle accelerators.
Only aluminium is a chemical element.
Zinc is only a metallic chemical element.