Questions: Radioisotopes of an element (Select all that apply) emit energy can be used in diagnostic procedures such as indium scans

Transcript text: Radioisotopes of an element (Select all that apply) emit energy can be used in diagnostic procedures such as indium scans

Solution

Solution Steps

Step 1: Understanding Radioisotopes

Radioisotopes are isotopes of an element that have an unstable nucleus and emit radiation as they decay to a stable form. This emission of energy is a key characteristic of radioisotopes.

Step 2: Evaluating Each Option

Option 1: "are highly reactive and preferentially participate in chemical reactions"
- Radioisotopes are not necessarily more chemically reactive than their stable counterparts. Their reactivity in chemical reactions is determined by their chemical properties, not their radioactivity.
Option 2: "emit energy"
- This is true. Radioisotopes emit energy in the form of radiation as they decay.
Option 3: "can be used in diagnostic procedures such as indium scans"
- This is true. Radioisotopes are commonly used in medical diagnostics, including indium scans, to trace and image various physiological processes.
Option 4: "have additional electrons in their valence shell"
- This is incorrect. Radioisotopes have the same number of electrons in their valence shell as their stable isotopes. The difference lies in the nucleus, not the electron configuration.