The Neutron Was Discovered in 1932 by James Chadwick, When

question 28

Multiple Choice

The neutron was discovered in 1932 by James Chadwick, when he bombarded beryllium-9 with an alpha particle. The products were a neutron and another nuclide. What is the other nuclide?

• A)boron-12
• B)lithium-8
• C)carbon-13
• D)carbon-12
• E)boron-13

---

Definitions:

Mydriatic

Relating to the dilation of the pupil, often due to medication or specific health conditions.

Mydriat

Often refers to mydriasis, the dilation of the pupil of the eye caused by disease, trauma, or the use of certain drugs.

Dilation

The action of expanding or being expanded in diameter or volume; in medical contexts, it often refers to the expansion of a passage or cavity.

Phacoemulsification

A modern cataract surgery technique using ultrasonic energy to emulsify the eye's lens before its removal and intraocular lens implantation.