Each of the Three Naturally Occurring Radioactive Series Start with One

question 41

Multiple Choice

Each of the three naturally occurring radioactive series start with one of the following isotopes except for which one?

• A)²³⁸U
• B)²³⁵U
• C)²³²Th
• D)²³⁷Np

---

Definitions:

Cramer's Rule

A mathematical theorem used to solve systems of linear equations with the same number of equations as unknowns, using determinants.

System of Linear Equations

A group of one or more linear equations that share a common set of variables.

Row-echelon Form

A form of a matrix where all nonzero rows are above any rows of all zeroes, and each leading entry of a row is to the right of the leading entry of the previous row.

Matrix

A rectangular array of numbers, symbols, or expressions, arranged in rows and columns, used in linear algebra.