Neon has 10 electrons. Its electronic configuration is 1s2, 2s2, 2p6. There are 8 valence electrons in its outmost shell.

 

How many neutrons does neon have?

Neon has 10 neutrons.  It has 17 radioisotopes and three naturally occurring stable isotopes. Neon-20 has 10 neutrons and an abundance of 90.48%. Neon-21 has 11 neutrons and an abundance of 0.27%. Neon-22 another stable isotope of Neon has 12 neutrons and an abundance of 9.25%.

How many protons does neon have?

Neon has an atomic number (Z) 10. It has 10 protons in its nucleus. 

 

Who discovered neon?

Neon was first isolated and discovered by Sir William Ramsay and Morris W. Travers.