Nitrogen, sulfur, and halogens are often referred to as foreign elements because they do not belong to the main group of elements typically found in biological systems or common geological processes. They can be present in trace amounts but are not essential for the basic biochemical functions of most organisms. Their presence can indicate environmental contamination or unusual geochemical conditions, thus being termed "foreign" in that context.
Phosphorus complexes are present in proteins but is not present in sugars or fats..
Sulphur
Sulphur...
No, sulfur is an element and sulfur dioxide is a gaseous compound. Sulfur dioxide is the combustion product of sulfur in an oxygen atmosphere (S+O2 --> SO2) Where sulfur is an element, sulfur dioxide is a compound and where sulfur is an insoluble yellow solid, sulfur dioxide is a colorless soluble gas.
There is no specific element with the symbol SCN on the periodic table. SCN commonly refers to the thiocyanate ion (SCN-) which is a polyatomic ion. It is a combination of sulfur (S), carbon (C), and nitrogen (N), commonly found in compounds.
Organic compounds may contain other elements than carbon, hydrogen and oxygen such as nitrogen ,halogen, sulphur, etc....these elements are known as foreign element.
Sulphur, silicon and phosphorus.
Phosphorus complexes are present in proteins but is not present in sugars or fats..
a sulphur element has no mobile electrons
Sulfur (also spelled sulphur) is an element.
Sulfur, also spelled sulphur, is an element.
Nitrogen is a non-metallic chemical element essential for life and found in proteins and DNA, while sulphur is also a non-metallic element used in various industrial applications and as a component in some amino acids. Nitrogen is a gas at room temperature, while sulphur is a solid. Both elements play important roles in biological and industrial processes.
Sulphur is a pure element.
Sulphur and Oxygen
You shouldn't find nitrogen or sulphur in carbohydrates. Carbohydrates only contain carbon, hydrogen and oxygen.
Sulphur and Hydrogen are both elements.
Actinium react with halogens (F, Cl, Br, I), oxygen, sulphur, etc.