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When Ra Decays by Emitting an Alpha Particle, What

Question 74

Multiple Choice

When 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 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

Correct Answer: