An igneous rock floats because air bubbles became trapped when molten material erupted from an underground volcano. How else can this rock be accurately described?

intrusive
extrusive
large crystals
coarse texture

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

the answer is minerals.