None of the elements exist naturally as an ion, but pump'em full of enough energy and you can rip off every last one of their electrons. In fact, there is a state of matter attainable for every element called plasma. This is defined as the state in which all atoms of the substance are ionized.
When atoms of more than one element chemically bonded together, they form a molecule. In some contexts, the you might answer that they form a compound.
Each of two or more different physical forms in which an element can exist.
Elements dont react to form other elements. However, compounds can react with one another or decompose to form elements. More importantly, fluorine is a diatomic molecule, which means that it will never exist as "F" but always as F2.
A chemical compound is formed.
An allotrope is a form of an element which has a distinctly different molecular structure to another form of the same element.
Elements with higher reactivity are less likely to exist in an uncombined form because they readily form compounds with other elements due to their tendency to gain or lose electrons. In contrast, less reactive elements are more stable and are often found in their uncombined form in nature.
Allotropy is the term used to describe the existence of an element in two or more different forms, like carbon, oxygen, phosphorus, and sulfur. These different forms, known as allotropes, have distinct physical and chemical properties while being composed of the same element.
None of the elements exist naturally as an ion, but pump'em full of enough energy and you can rip off every last one of their electrons. In fact, there is a state of matter attainable for every element called plasma. This is defined as the state in which all atoms of the substance are ionized.
a compound.
Calcium is an element. There are things such as elements and compounds. Calcium is a single element. Calcium containing compounds exist also but compounds contain more than one element.
alloy
a new element
A compound.
When atoms of more than one element chemically bonded together, they form a molecule. In some contexts, the you might answer that they form a compound.
an element
one or more elements combine to form compounds