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ATOMS, MOLECULES AND ELEMENTS

Horizontales
Vigorous activity
Substance that flows freely but is of constant volume
Smallest physical unit of an element or compound
Core
The state or quality of being dense
Basic unit of chemical element
Substance possessing perfect molecular mobility and property of indefinite expansion
Verticales
A positively charged elementary particle that is fundamental constituent of all atomic nuclei
Amount of space
More than 100 substances that can not be broken down to simpler substances
The substance or substances of which a physical object consists or is composed
Dense, thick or heavy
Large body of matter with no definite shape