Suppose That Starting With ${ } _ { 89 } ^ { 227 }$

question 111

Short Answer

Suppose that starting with ${ } _ { 89 } ^ { 227 }$ , the following sequence of decays occurs: first an alpha decay, then a beta-minus decay, and finally another alpha decay. What isotope is left after each one of the decays?

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Definitions:

Gross Profit

The difference between revenue and the cost of goods sold before accounting for other expenses.

Intra-Entity Sales

Transactions of goods, services, or assets between divisions within the same organization.

Significant Influence

The capacity to affect the financial and operating policies of another entity without having control or full ownership, often through ownership of a sizable percentage of voting shares.

Net Income

The net profit figure for a company, achieved by subtracting all operational costs and tax liabilities from its revenue.