An Atom with an Atomic Number of 9 and a Mass

question 2

Multiple Choice

An atom with an atomic number of 9 and a mass number of 19 would have an atomic mass of approximately

• A)9 daltons.
• B)9 grams.
• C)10 daltons.
• D)20 grams.
• E)19 daltons.

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Definitions:

Double-Declining-Balance

A method of accelerated depreciation that doubles the straight-line depreciation rate, reducing the asset's book value more quickly in the early years of its life.

Straight-Line Method

A method of calculating the depreciation of an asset where the asset's cost is evenly spread over its useful life.

Accumulated Depreciation

The total amount of a tangible asset's cost that has been allocated as depreciation expense since the asset was put into use.

Salvage Value

The calculated residual valuation of an asset at the end of its service life.