What Is the Approximate Ratio of the Brightness of Two

question 118

Multiple Choice

What is the approximate ratio of the brightness of two stars whose apparent magnitudes differ by 1 magnitude?

• A) 2.5
• B) 10
• C) 100
• D) 2

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Definitions:

Oxidation Number

A number that represents the total number of electrons an atom either gains or loses in order to form a chemical bond with another atom.

Ca

Chemical symbol for Calcium, a reactive, soft metallic element that is a member of the alkaline earth metals.

Oxidation Number

A value that represents the number of electrons lost or gained by an atom in a compound compared to its elemental state.

C

Carbon, an element with the atomic symbol 'C', known for its ability to form a vast number of compounds, more than any other element.