What Particle Will Balance the Following ${ }_{90}^{234} \mathrm{Th}$ ${ }_{91}^{234} \mathrm{~Pa}$

question 13

Multiple Choice

What particle will balance the following: ${ }_{90}^{234} \mathrm{Th}$ ? ${ }_{91}^{234} \mathrm{~Pa}$ ?

• A) \({ }_{-1}^{0} \mathrm{e}\)
• B) \({ }_{2}^{4} \mathrm{He}\)
• C) \({ }_{1}^{1} \mathrm{H}\)
• D) \({ }_{1}^{2} \mathrm{H}\)

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Piaget's Cognitive Development

A theory put forth by the Swiss psychologist Jean Piaget that describes how children's intellectual abilities evolve as they grow.

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