A Pure Sample of ²²⁶Ra Contains 2

question 18

Multiple Choice

A pure sample of ²²⁶Ra contains 2.0 x 10¹⁴ atoms of the isotope.If the half-life of ²²⁶Ra = 1.6 x 10³ years,what is the decay rate of this sample? (1 Ci = 3.7 x 10¹⁰ decays/s)

• A)2.7 x 10^-12 Ci
• B)3.4 x 10^-10 Ci
• C)7.4 x 10^-8 Ci
• D)9.6 x 10^-6 Ci

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Definitions:

Storming

A phase during which, after a period of time, tension may arise between members and different personalities might clash, leading to tension and conflict in the team.

Different Personalities

Variability in individual characteristics, traits, and habits that distinguish one person from another.

Forming

A process whereby team members meet for the first time, get to know each other, and try to understand where they fit into the team structure.

Avoid Conflict

A strategy or approach to prevent disagreements and disputes in interpersonal or group settings to maintain harmony and cooperation.