Question

Draw the Lewis Structure for H2O.

Answer 1

To draw the Lewis structure for H2O, count the valence electrons, place the atoms, represent the bonding pairs and lone pairs, and check for octet completeness.

The Lewis structure for H2O can be drawn using the following steps:

Count the total number of valence electrons for each atom. Hydrogen has 1 valence electron and oxygen has 6 valence electrons.

Place the atoms in a way that the central atom (in this case, oxygen) is surrounded by the other atoms (hydrogen).

Use single lines to represent the bonding pairs between the central atom and the surrounding atoms. In this case, draw two lines between the oxygen and hydrogen.

Distribute the remaining valence electrons around the atoms to complete their octets. Oxygen will have two lone pairs of electrons and hydrogen will have no lone pairs.

Check if every atom has a complete octet. In this case, oxygen has 8 electrons and hydrogen has 2.

Write the Lewis structure, making sure to correctly represent the bonding pairs and lone pairs. In this case, it would be H—O—H.

Answer 2

Structure has been shown below

Step-by-step explanation:

• In a Lewis structure, least electronegative atom is taken as central atom (except H)
• Total valence electrons of constituting atoms are used to construct Lewis structure
• A bond between two atoms are represented by a horizontal line or a dotted line (two dots).
• Spatial rearrangement of atoms are neglected in Lewis structure.
• H has one valence electron and O has six valence electrons. So, total valence electrons in
  `H_(2)O` are 8
• Lewis structure of
  `H_(2)O` has been given below.