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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?

Definitions:

Projection

A defense mechanism where an individual attributes their own unacceptable thoughts, feelings, or motives to someone else.

Rationalisation

A psychological strategy where questionable actions or emotions are rationalized in a way that appears logical, to sidestep the real reasons behind them.

Psychosexual Stages

Freud's theory of personality development, which posits that children pass through distinct stages centered on erogenous zones, with unsuccessful navigation potentially resulting in lifelong neuroses.

Sexual

Relating to or associated with sex, mating, or the distinction between biological categories frequently based on reproductive functions.

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

Definitions:

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