Its atomic number.
The atomic number of an element represents the number of protons in the nucleus of an atom of that element. It is a unique identifying characteristic of an element because different elements have a unique number of protons in their nuclei.
Atomic number is a characteristic property of an atom. Each element has its own unique atomic number, which is the number of protons in the nucleus of an atom.
The number of protons in the nucleus identifies the element. It is like a fingerprint for that element. No other element will have that same number of protons. As soon as the number of protons in the nucleus changes, so does the identity of the element change.
A characteristic property of an element is its atomic number, which determines the element's identity on the periodic table. Each element has a unique number of protons in its nucleus, which is constant for that element regardless of its chemical state or conditions.
The number of protons in the nucleus determines the identity of the element.
One characteristic property of an element is the number of electrons it has.
The atomic number of an element is the number of protons found in the nucleus of an atom of that element. It is the unique identifier for an element on the periodic table. The atomic number determines an element's chemical properties and its position in the periodic table.
The number of atoms in an element depends on WHAT element AND how much of that element.
The number of protons in the nucleus of its atoms.
An element can be identified by the number of protons in the nucleus of its atoms.
The atomic number of an element is determined by the number of protons in the nucleus of an atom. It is a unique characteristic of each element and defines its place on the periodic table. The atomic number also corresponds to the number of electrons in a neutral atom of that element.
An element's ID number is the atomic number, which represents the number of protons in the nucleus.