The deflection of this element's ionized particles provided J. J. Thomson with evidence of atomic isotopes.
The deflection of this element's ionized particles provided J. J. Thomson with evidence of atomic isotopes. This element can be produced by reacting oxygen and helium in the alpha process, and it is the lightest element whose neutral atom has a filled p shell. Although it is the fifth most abundant element in the universe, it is rarely found on Earth due to its chemical (*) inertness. It is mixed with helium to form a laser that produces red light, and it is commonly used in bright advertising signs. For ten points, identify this noble gas with atomic number 10 and symbol Ne.
The deflection of this element's ionized particles provided J. J. Thomson with evidence of atomic isotopes.
neon (accept Ne before read) &lt;EnC&gt;