Answer:
k
Explanation:
What are the uses of technetium?
The gamma-ray emitting technetium-99m (metastable) is widely used for medical diagnostic studies. Several chemical forms are used to image different parts of the body. Technetium is a remarkable corrosion inhibitor for steel, and adding very small amounts can provide excellent protection.
Discovered by: Carlo Perrier and Emilio Segrè
Discovery date: 1937
