How is electron movement related to covalent bonding in ammonia, nh3?
a) electrostatic sharing in a sea of electrons around the atoms allows bonds to form.
b) the atomic orbitals overlap and electrons are shared between the atoms forming bonds.
c) a transfer of electrons forms ions which are electrostatically attracted forming bonds.
d) orbital exchange occurs between the atoms to redistribute the electrons and form bonds.

How is electron movement related to covalent bonding in ammonia, NH3?

A) Electrostatic sharing in a sea of electrons around the atoms allows bonds to form. 
B) The atomic orbitals overlap and electrons are shared between the atoms forming bonds. 
C) A transfer of electrons forms ions which are electrostatically attracted forming bonds. 
D) Orbital exchange occurs between the atoms to redistribute the electrons and form bonds.

The electron movement related to covalent bonding in ammonia, NH3 is The atomic orbitals overlap and electrons are shared between the atoms forming bonds. The answer is letter B.

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.