Front

What is the predicted shape of the molecule PH3?

Back

pyramidal

Front

Which shape is always associated with a polar bond?

Back

bent

Front

According to VSEPR theory, two-atom molecules are __________ linear.

Back

always

Front

What phenomenon is associated with the presence of unpaired electrons in molecular orbitals?

Back

paramagnetism

Front

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

Back

one sigma and two pi

Front

Define molecular geometry.

Back

The three-dimensional arrangement of atoms in a molecule.

Front

What is VSEPR theory?

Back

Valence Shell Electron Pair Repulsion theory, which predicts the shape of molecules based on electron pair repulsion.

Front

What is a sigma bond?

Back

A type of covalent bond formed by the head-on overlap of atomic orbitals.

Front

What is a pi bond?

Back

A type of covalent bond formed by the side-to-side overlap of p orbitals.

Front

What is the shape of a molecule with four bonding pairs and no lone pairs?

Back

tetrahedral