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4-4-1 -- Chemistry -- Part 1

Horizontales
When matter changes from liquid to gas
When matter changes from solid to liquid
Smallest unit of matter
Atoms of the same element that have a different number of neutrons
Negatively charged particles in an atom
The number of protons an atom contains shown on the Periodic Table
The average mass of a typical atom of an element shown on the Periodic Table
State of matter that has a defined shape and volume
Particles in atoms that have no charge
When matter changes from liquid to solid
Each horizontal row on the Periodic Table
Verticales
Positively charged particles in atoms
Anything that has mass and takes up space
How easily something can be flattened, shaped, or pressed
When matter changes from solid directly to gas
State of matter that does not have a fixed shape or volume
When matter changes from gas to liquid
Each vertical column on the Periodic Table
Center of an atom formed by protons and neutrons
State of matter that is free-flowing, takes on the shape of its container, and has a fixed volume