How Is the Term "Mass Number" Defined for a Given

question 79

Multiple Choice

How is the term "mass number" defined for a given atom or isotope?

• A) as the mass of one mole of that element or isotope
• B) as the sum of the number of protons, neutrons, and electrons
• C) as the sum of the number of protons and neutrons in the nucleus
• D) as the number of protons in the nucleus

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Definitions:

Molecule

The smallest particle in a chemical element or compound that has the chemical properties of that element or compound, composed of atoms bonded together.

Anisole

An organic compound, methoxybenzene, characterized by a methoxy group attached to a benzene ring, used as a precursor in perfumery and pharmaceuticals.

Compound

An entity made up of multiple elements chemically joined in constant ratios.

Chebysheff's Theorem

A statistical theorem stating that for any data set or distribution, no matter the shape, a minimum proportion of values must lie within a certain number of standard deviations from the mean.