High School

Three atoms have the following properties:

- Atom X: Protons = 119, Neutrons = 119, Electrons = 119
- Atom Y: Protons = 119, Neutrons = 118, Electrons = 119
- Atom Z: Protons = 118, Neutrons = 118, Electrons = 118

The elements X and Z are best described as:

A. anions
B. isotopes
C. different elements
D. cations

Answer :

Final answer:

The atoms X and Z represent the same element, as they have the same number of protons. However, they differ in their number of neutrons, thus they are best described as isotopes.

Explanation:

The three given atoms, Atom X, Atom Y and Atom Z, are described by their number of protons, neutrons, and electrons. Each of these characteristics contributes to the classification of an atom. An atom is identified as an element by its number of protons, also known as its atomic number (Z). In this case, Atom X and Atom Z have the same atomic number (Z=119), meaning they represent the same element. However, they have different numbers of neutrons (N), with Atom X having 119 and Atom Z having 118 which means they are different versions of the same element, or isotopes.

Learn more about Isotopes here:

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