In the Uranium Disintegration Series:
A) the Emission of A \beta

question 9

Multiple Choice

In the uranium disintegration series:

• A) the emission of a \(\beta\)^- particle increases the mass number A by one and decreases the atomic number Z by one
• B) the disintegrating element merely ejects atomic electrons
• C) the emission of an \(\alpha\)particle decreases the mass number A by four and decreases the atomic number Z by two
• D) the nucleus always remains unaffected
• E) the series of disintegrations continues until an element having eight outermost orbital electrons is obtained

---

Definitions:

Rising Rates

An increase in the occurrence or level of a specific phenomenon over a given period.

AIDS

Acquired Immunodeficiency Syndrome, a life-threatening condition caused by the human immunodeficiency virus (HIV) which severely damages the immune system.

Virus

A microscopic infectious agent that replicates only inside the living cells of other organisms and can cause diseases.

Caused

Refers to something that brings about an effect or result, indicating a relationship where one event is the reason something else happens.