How are atoms and molecules best described in modern science?

• As tiny balls connected by sticks.

• As lumpy, clumpy globs of probable electron locations.

• As simple, spherical particles.

• As solid, unchangeable spheres.

What is the shape of a water molecule?

• Straight line

• Bent

• Square

• Circular

What is a wave function in relation to an electron?

• A physical path an electron takes.

• A mathematical description of where an electron is likely to be.

• A type of energy an electron releases.

• A force that holds electrons together.

How many electrons can an s orbital hold at its lowest energy?

• One

• Two

• Three

• Eight

What shape is formed when one S orbital mixes with three P orbitals?

• Linear

• Trigonal planar

• Tetrahedral

• Octahedral

Why is a water molecule shaped in a way that makes it polar?

• It has a linear shape.

• Its electrons are arranged in a trigonal planar shape.

• Its electrons are forced into a tetrahedral structure with lone pairs.

• It has only S orbitals.

What kind of bond is formed when unmixed P orbitals overlap above and below the main bond?

• Sigma bond

• Pi bond

• Hybrid bond

• Ionic bond

What shape do SP orbitals form, and what kind of bonds do they help create?

• Tetrahedral, single bonds

• Trigonal planar, double bonds

• Linear, triple bonds or two double bonds

• Octahedral, single bonds