Match the ions below with the pictures that represent their relative sizes.Justify your answers.
Ions:
Se2- K+ Ga3+ Br- Ca2+ 
Definitions:
Crystallize
The process of formation of a solid crystal from a solution, melt, or more rarely from a gas.
Metamorphism
The process by which the composition or structure of rocks is changed by heat and pressure over geological time.
Magma
Magma is molten rock beneath the Earth's surface, which can form igneous rocks upon cooling.
Igneous Rocks
Rocks formed through the cooling and solidification of magma or lava.
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