The diagram shows a model of an atom. The model has four different symbols on it. Each symbol represents a different role for one of the particles within the atom. In this model, which particle determines the reactivity of this atom? Question 18 options:

Particle W

Particle W

Particle Y

Particle Z

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explanation:

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

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