Molecules Vocab Flashcards
Molecule
2 or more atoms held together with a chemical bond
Chemical Bond
Connection between atoms
Model
Representation of an object
Atomic Composition
The atoms that make up a molecule and the special qualities
Chemical Structure
The specific way the atoms are arranged
Extended Structure
A molecule whose atoms occur in a constant ratio and repeating pattern
Crystal
A structure of atoms or molecules in a 3D pattern
Ex. Snowflakes, Sugar, Salt
Polymer
Structure of molecules with a repeating chain pattern
Glucose and fructose both have an atomic composition of C6H12O6 but they are different molecules. What is most likely the major difference between them?
Their structure
List 2 differences between crystals and polymers. Hint: one is shape and one is composition.
Polymers are chains and are only made of molecules
Crystals are patterns and are made of molecules and atoms
What is an element?
A substance that can’t be broken down further
What is an atom?
The smallest unit of an element
What is a molecule?
Two or more atoms held together with a chemical bond
When making molecule models, what do the beads represent? The sticks?
The beads represent the atoms and the sticks represent the chemical bonds.
Can you have 2 different crystals that are made of the same atom?
Yes
