The First Step in the Disintegration of Uranium Is ${ } _ { 92 } ^ { 238 } \mathrm { U } \rightarrow { } _ { 90 } ^ { 234 } \mathrm { Th }$

question 112

Multiple Choice

The first step in the disintegration of uranium is ${ } _ { 92 } ^ { 238 } \mathrm { U } \rightarrow { } _ { 90 } ^ { 234 } \mathrm { Th }$ . What particle is emitted in this reaction?

• A) (\(\alpha\) particle)
• B) neutron
• C) proton
• D) electron
• E) (X- ray)

---

Definitions:

Herfindahl Index

A method for evaluating market concentration by squaring individual firms' market shares and then aggregating these squared figures.

Concentration Ratios

Measures that indicate the extent of market control by the largest firms in an industry, reflecting the level of competition.

Market Power

Describes the ability of a company or group to manipulate or control prices within a market, often by influencing supply, demand, or both.

Four-Firm Concentration Ratio

A measure of market concentration that quantifies the market share of the four largest firms within an industry, often used to assess the competitiveness of a market.