Question

note: to answer some of the questions, it may help to reference a periodic table.
which molecular models show the 3d arrangement of atoms in molecules?
(select all that apply)
□ structural formula model
□ space - filling model
□ lewis structure model
□ ball - and - stick model

Explanation:

• Space - filling model: Represents the 3D arrangement of atoms by showing the relative sizes of atoms and how they fill space in a molecule.
• Ball - and - stick model: Depicts the 3D structure with balls for atoms and sticks for bonds, showing the spatial orientation of atoms.
• Structural formula model: Usually a 2D representation (though some can imply 3D in simple cases, but not as explicitly as the other two).
• Lewis structure model: Focuses on electron - pair distribution (bonding and non - bonding) and is a 2D representation.

Answer:

space - filling model, ball - and - stick model