Fluroine is the most reactive non-metal.
an element is a single type of atom in abundance (as in pure copper wire, etc.) therefore, an element cannot change. a compound can be broken down into two elements when another element or compound reacts with the former. im pretty sure its called a reaction.
The type of element with physical properties generally opposite to those of metals is known as a nonmetal. Nonmetals tend to be poor conductors of heat and electricity, have lower densities, and are often brittle in solid form, unlike metals which are typically shiny, malleable, and good conductors. Common examples of nonmetals include oxygen, nitrogen, and sulfur.
Rubidium (Rb) occurs naturally in minerals such as Pollucite, Carnallite and Lepidolite.
Most are shiny.
Calcium (Ca) is classified as an alkaline earth metal. It is a reactive metal that is commonly found in solid form as an element with a silvery-white color.
nonmetals
Yes, metalloids are elements that have properties of both metals and nonmetals.
The term "metalloid" properly does not designate any particular element but rather a type of element that has some common properties with both metals and nonmetals. Of course, any element having this characteristic may be called a metalloid.
Arsenic is classified as a metalloid, which is a type of element that has properties of both metals and nonmetals.
A single-replacement reaction is a type of chemical reaction where an element replaces another element in a compound. This occurs when a more reactive element displaces a less reactive element from its compound, forming a new compound and releasing the displaced element.
ionic compounds
Reactive.
A displacement reaction is a type of chemical reaction where a more reactive element displaces a less reactive element from a compound. This occurs when the more reactive element has a greater tendency to lose electrons and form positive ions than the element it displaces. The displaced element is often in elemental form.
A single displacement reaction is a type of chemical reaction in which one element replaces another in a compound. It occurs when a more reactive element displaces a less reactive one from its compound.
Alkali metals
A semi-metal is type of element that has a partially filled P orbital. These are often referred to as nonmetals, too.
Boron is a metalloid element, which means it has properties of both metals and nonmetals. It is commonly found in nature as borax and other borate minerals.