An Yttrium Isotope Has 39 Protons and 50 Neutrons in Its

question 151

Multiple Choice

An yttrium isotope has 39 protons and 50 neutrons in its nucleus. Which one of the following symbols accurately represents this isotope?

• A) \({ } _ { 39 } ^ { 50 } \mathrm { Y }\)
• B) \({ } _ { 50 } ^ { 89 } \mathrm { Y }\)
• C) \({ } _ { 50 } ^ { 39 } \mathrm { Y }\)
• D) \({ } _ { 89 } ^ { 39 } \mathrm { Y }\)
• E) \({ } _ { 39 } ^ { 89 } \mathrm { Y }\)

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Definitions:

Operating Point

The steady-state condition where a system or component operates, often determined by balancing external inputs with the system's response.

Process Variable

A process variable is any measurable condition in a process or system, such as temperature, pressure, or flow rate, which can be controlled and monitored.

Continuous Process

A manufacturing or chemical process that operates uninterrupted, as opposed to batch processing which occurs in distinct steps.