S- sulfur
in its pure form, iron is an element, but that may not be what you are referring to.... if you have iron oxide (rust), this is a compound of iron and oxygen.
The atom is the smallest particle of an element that retains it's characteristics. Sub-atomic particles such as protons, neutrons and electrons form the atom and it is the amount of each of these sub-atomic particles that make the element that element.
No, diamond is a form of the pure element carbon.
False. A molecule is the smallest part of a compound that can still be indentified as a compound as it may contain several atoms of different elements. A single atom can only identify a single element, not a compound which it may have been a part of.
Firstly i would like to add that sodium is an element and not a compound. sodium is never pure as pure sodium ignites at ambient temperatures but it is also the 7th most abundant element found mainly in the form of rocksalt(NaCl).it may also be found as salts like borax,trona,saltpetre,mirabilite,etc
When you mix an element with a compound, a chemical reaction may occur. The element may react with the compound to form a new compound or may remain unchanged depending on the reactivity of the elements involved.
When you mix an element with a compound, the element will interact with the components of the compound but will not form a new compound itself. It may bond to some parts of the compound or remain unchanged depending on the specific elements and compounds involved in the mixture.
in its pure form, iron is an element, but that may not be what you are referring to.... if you have iron oxide (rust), this is a compound of iron and oxygen.
Iron is a chemical element; sand may be a compound or a mixture.
No. If it is written Ar, it is the element Argon. If not, it may be the acronym for a longer-named compound, but it cannot be a chemical formula.
substance
The atom is the smallest particle of an element that retains it's characteristics. Sub-atomic particles such as protons, neutrons and electrons form the atom and it is the amount of each of these sub-atomic particles that make the element that element.
Iron is an element, and is the heaviest element that may be made by fusion in a Star such as our Sun.
To form a compound.
The large difference in electronegativity between the elements in the compound is the best indicator that a compound may be ionic. Ionic compounds typically form between elements with a large electronegativity difference, resulting in the transfer of electrons from one element to another.
A solid may be an element (iron), a compound (iron oxide), a mixture (iron ore).
No, diamond is a form of the pure element carbon.