The Disk of the Milky Way Is Approximately 20,000 Ly

question 45

True/False

The disk of the Milky Way is approximately 20,000 ly in diameter.

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Definitions:

Ionic Bonding

Ionic bonding is the chemical bond formed through the electrical force between oppositely charged ions, typically between metals and nonmetals.

Lewis Structure

A Lewis structure is a diagrammatic representation of the arrangement of valence electrons around atoms in molecules, indicating the bonding between atoms as well as the lone pairs of electrons.

Ethyne

A colorless gas with a sharp, distinct odor; the simplest alkyne, it is a hydrocarbon with the formula C2H2.

Acetylene

A hydrocarbon and the simplest alkyne, used as a fuel and a chemical building block, recognized by its formula C2H2.