Molecular Geometry Quiz

The theory that states that covalent bonds are formed when orbitals of different atoms overlap is called the __________ theory.

• valence bond

• VSEPR

• molecular orbital

• electron sea

What type of bond forms from orbitals overlapping end to end?

• pi

• sigma

• gamma

• delta

Which of the following bonds is the strongest?

• single

• double

• triple

• These are all equal in strength.

What type of bonds make up triple bonds?

• one sigma and two pi

• two sigma and one pi

• two sigma and two pi

• one sigma and one pi

How many sigma and pi bonds are there in a molecule of N2?

• one sigma and two pi

• two sigma and one pi

• one sigma and one pi

• one sigma and zero pi

For some molecules, no single Lewis structure can completely describe the distribution of electrons. The display of an intermediate character within the bonds of such molecules is called __________.

• antibonding

• resonance

• polarity

• hybridization

Which of the following elements is most likely to serve as the central atom and hold fewer than eight valence electrons in its bonded state?

• beryllium

• bohrium

• boron

• bromine

Tags

NGSS.HS-PS1-1

What relatively recent theory predicts the magnetic qualities of diatomic oxygen?

• valence bond theory

• bond hybridization theory

• molecular orbital theory

• VSEPR theory

The presence of unpaired electrons in molecular orbitals has been associated with what phenomenon?

• hybridization

• polar covalent bonds

• paramagnetism

• molecular resonance

Tags

NGSS.HS-PS2-5

The assumption that molecular shapes are largely determined by the repulsion of regions of electron concentration is known as the __________ theory.

• valence bond

• VSEPR

• molecular orbital

• electron sea