For Each Entity,the Name of the Identifier Is

question 26

Multiple Choice

For each entity,the name of the identifier is:

• A)identified by using a double-lined ellipse
• B)underlined on an E-R diagram
• C)bold on an E-R diagram
• D)written in all capital letters on an E-R diagram

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Definitions:

Molecules

Molecules are groups of two or more atoms held together by chemical bonds, forming the smallest identifiable unit into which a pure substance can be divided while retaining its composition and chemical properties.

Ions

Atoms or molecules with an electrical charge due to the loss or gain of one or more electrons.

Molecule

A molecule is the smallest unit of a chemical compound that retains its chemical properties, consisting of two or more atoms bonded together.

Stable

Refers to an object, substance, or system that remains unchanged or resists change in conditions or under pressure.