Answer:
This element is Helium (He).
Explanation:
The figure above shows an element with 2 electrons, 2 protons and 2 neutrons. The only element that has these characteristics is Helium, and all of this can be confirmed if you look for helium in the periodic table.
The helium element is a noble gas, belonging to the family 0 or 8A of the periodic table, is inert, ie, does not undergo chemical reaction, follows the rule of the duet (is stable with 2 electrons in its last valence layer), has 8 isotopes, but practically negligible, since about 99.999% of helium is the stable isotope 4He. It is colorless and odorless has an atomic number 2 and an electronic configuration of 1s2, atomic mass 4,002 u, its chemical symbol is He, its melting point is -272,2 ° C and boiling point -268,9 ° C, even near the Absolute zero gas does not solidify, it just forms unstable diatomic molecules.
