Lewis Structures for Covalent Compounds

Front

What is electronegativity?

Back

Electronegativity is the electrical attraction of an atom for the electrons in a bond.

Front

How do you determine the correct Lewis structure for a compound?

Back

To determine the correct Lewis structure, you must consider the number of valence electrons and the arrangement of atoms.

Front

What is the Lewis Dot Structure for HCl?

Back

The Lewis Dot Structure for HCl shows a single bond between H and Cl, with Cl having three lone pairs of electrons.

Front

What is the first step in drawing a Lewis structure?

Back

The first step in drawing a Lewis structure is to find the number of valence electrons in each atom.

Front

How is the Lewis Dot Model used to represent molecules?

Back

The Lewis Dot Model uses dots to represent valence electrons and shows how they are shared or transferred between atoms.

Front

What is the significance of lone pairs in Lewis structures?

Back

Lone pairs are pairs of valence electrons that are not involved in bonding and can affect the shape and reactivity of the molecule.

Front

What is the general rule for determining the central atom in a Lewis structure?

Back

The central atom is usually the least electronegative atom or the atom that can form the most bonds.

Front

How do you calculate the total number of valence electrons for a molecule?

Back

To calculate the total number of valence electrons, add the valence electrons of all the atoms in the molecule.

Front

What is a double bond in a Lewis structure?

Back

A double bond is a covalent bond where two pairs of electrons are shared between two atoms.

Front

What is the Lewis structure for O2?

Back

The Lewis structure for O2 shows a double bond between the two oxygen atoms, with each oxygen having two lone pairs.