Helium

Helium sophie :) Your task is to explore ONE element and make a wiki to display your learning. There are several questions you must answer about your element: He is the symble for helium it has 2 protons and 2 neutrons, also 2 electrons becaus e iti s atomic mass is 2.

Pierre Janssen discovered it in indea, 1868. it is a gas and it stays the same in room tempreture. its boiling point is -268.934 degrees, and its melting point is -268.6 degress it is used for balloons and airships, it is the second lightest element.

where was it found