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The Isotopes of Promethium, and , Are Unstable $\beta$

question 16

Multiple Choice

The isotopes of promethium, $The isotopes of promethium, and , are unstable, and lie on opposite sides of the line of stability. Which of the following combinations is most likely to represent the type of decay for these isotopes? A) promethium-144, \beta decay; promethium-134, positron decay B) promethium-144, positron decay; promethium-134, \beta decay C) promethium-144, positron decay; promethium-134, electron capture D) promethium-144, electron capture; promethium-134, positron decay E) promethium-144, \beta decay; promethium-134, \gamma decay$ and $The isotopes of promethium, and , are unstable, and lie on opposite sides of the line of stability. Which of the following combinations is most likely to represent the type of decay for these isotopes? A) promethium-144, \beta decay; promethium-134, positron decay B) promethium-144, positron decay; promethium-134, \beta decay C) promethium-144, positron decay; promethium-134, electron capture D) promethium-144, electron capture; promethium-134, positron decay E) promethium-144, \beta decay; promethium-134, \gamma decay$ , are unstable, and lie on opposite sides of the "line of stability." Which of the following combinations is most likely to represent the type of decay for these isotopes?

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Level of Risk

The probability or chance of experiencing harm or loss.

One-sample Z-test

A statistical test used to determine whether there is a significant difference between the mean of a sample and a known or hypothesized population mean.

Mean of a Sample

The average value obtained by dividing the sum of all observations in a sample by the number of observations.

Mean of a Population

The average value derived from adding all the values in a population and then dividing by the number of values.

The Isotopes of Promethium, and , Are Unstable β\betaβ

Definitions:

The Isotopes of Promethium, and , Are Unstable $\beta$