The Chart Below Shows Part of the Radioactive Series Beginning ${ } _ { 90 } ^ { 232 } \mathrm { Th }$

question 3

Multiple Choice

The chart below shows part of the radioactive series beginning with the isotope ${ } _ { 90 } ^ { 232 } \mathrm { Th }$ .The isotope marked with an X is

• A) \({ } _ { 88 } ^ { 222 } \mathrm { Ra }\) .
• B) \({ } _ { 88 } ^ { 224 } \mathrm { Ra }\) .
• C) \({ } _ { 89 } ^ { 228 } \mathrm { Ac }\) .
• D) \(224 \mathrm { Th }\) .
• E) \({ } _ { 90 } ^ { 228 } \mathrm { Th }\) .

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Definitions:

Cooperation

The act of working together towards a common goal or purpose, often involving shared efforts or resources.

Unions

are organizations that represent the collective interests of workers, focusing on wage negotiation, work conditions, and benefits.

Motivator

A factor that stimulates an individual to act in a certain way or pursue a particular goal, often leading to enhanced performance or behavior.

Restriction of Productivity

Limitations or constraints that decrease the efficiency or output of a process, system, or individual's work.