Sodium is an element found in table salt. it contain 11 protons and 12 neutrons. how many electrons are found in a neutral atom of sodium

See below.  

Step-by-step explanation:

In a neutral atom ,

number of electrons = number of protons

                e                =               p

The atomic number of  Na (11) is its number of protons, so p = 11.

If p = 11, then e = 11 .

There are 11 electrons in an atom of Na.

b. atoms in metallic solids are not arranged in a regular pattern

explanation:

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."