Question

1. a student creates models of four different particles and records the following data. based on these models, which analysis of the particles is most accurate? w and x are isotopes of the same ion, y is a neutral atom, z is an ion of a different element. w and y are different ions of the same element, x and z are neutral atoms of different elements. w, x, and y are all related to the same element, z represents a completely different element. all four particles represent neutral atoms of different elements with varying mass numbers.

Explanation:

Step1: Recall the definition of an element

An element is defined by the number of protons. Particles W, X, and Y all have 12 protons, so they are related to the same element (magnesium - Mg).

Step2: Analyze particle Z

Particle Z has 19 protons, which means it is a different element (potassium - K).

Step3: Recall the definitions of isotopes and ions

Isotopes have the same number of protons but different numbers of neutrons. Ions have a different number of electrons compared to protons. W, X, and Y having different numbers of neutrons and electrons relative to each other can be different forms (isotopes or ions) of the same element.

Answer:

W, X, and Y are all related to the same element; Z represents a completely different element.