The Isotopes of Promethium, and Are Unstable, and Lie

question 33

Multiple Choice

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,  decay; promethium-134, positron decay
• B) promethium-144, positron decay; promethium-134,  decay
• C) promethium-144, positron decay; promethium-134, electron capture
• D) promethium-144, electron capture; promethium-134, positron decay
• E) promethium-144,  decay; promethium-134,  decay

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Definitions:

Permissive Parents

Parenting style characterized by low demands with high responsiveness, where parents are lenient and avoid confrontation.

Authoritarian

A governance or leadership style characterized by strict adherence to authority and control, with little freedom for subordinates.

Strict

Involves rigid enforcement or exacting adherence to specified guidelines or standards.

Permissive

A parenting or leadership style characterized by low demands with high responsiveness, where rules are minimal and children are largely allowed to regulate their own behavior.