When Ra Decays by Emitting an Alpha Particle, What

question 46

Multiple Choice

When Ra decays by emitting an alpha particle, what is the atomic number of the resulting nucleus? What is the resulting atomic mass?

• A)atomic number = 86; atomic mass = 222
• B)atomic number = 87; atomic mass = 226
• C)atomic number = 86; atomic mass = 224
• D)atomic number = 87; atomic mass = 224

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Definitions:

Black Box Influence

The impact of systems or processes whose internal workings are not visible or easily understood by outside observers.

Consumer's Mind

The perceptions, attitudes, memories, and biases that influence how a customer thinks about a product, brand, or experience.

Evoked Set

The group of brands or businesses that come to a customer’s mind when she thinks of a type of product.

Cognitive Dissonance

The mental discomfort experienced by an individual who holds two or more contradictory beliefs, ideas, or values at the same time.