Which of the Following Descriptions of a Subatomic Particle Is

question 56

Multiple Choice

Which of the following descriptions of a subatomic particle is correct?

• A)A proton has a positive charge and a mass of approximately 1 amu.
• B)An electron has a negative charge and a mass of approximately 1 amu.
• C)A neutron has no charge and its mass is negligible.
• D)A proton has a positive charge and a negligible mass.
• E)A neutron has a positive charge and a mass of approximately 1 amu.

---

Definitions:

Adventitia

The outermost layer of the wall of a blood vessel or other tubular structure, consisting of connective tissue.

Cortex

The outer layer of an organ or structure, such as the cerebral cortex of the brain or the cortex of a plant root or stem.

Medulla

The innermost part of an organ or structure, such as the medulla oblongata in the brain which controls vital body functions.

Renal Papilla

The tip of the renal pyramid in the kidney that projects into the minor calyx, where urine is collected before passing into the ureter.