Question

What is the second most common element in the universe?

Answer 1

Hint :We know that the most abundant element in the universe is thought to be Hydrogen. The reason behind its abundance in the universe is hydrogen structure. The electrically neutral atom contains a proton which has positive charge and an electron of negative charge. It is represented by the symbol and atomic number is one.

Complete Step By Step Answer:
Hydrogen is made up of one proton and one electron (in the periodic table this is the only element without a neutron). Hydrogen is the simplest element present in the universe. The second most abundant element in the universe is Helium, but still there is ten times more hydrogen than helium in this universe. Hydrogen and Helium make up three quarters of known matter in the universe. So it is concluded by the scientist that the elements which have the higher atomic mass are less abundant in the universe. So the molecule of hydrogen is the simplest molecule in the universe. So it is concluded by the scientist that the elements which have the higher atomic mass are less abundant in the universe. So the molecule of hydrogen is the simplest molecule in the universe. Helium is the second most abundant element in the universe.

Note :
Remember that Hydrogen is made up of one proton and one electron (in the periodic table this is the only element without a neutron). Hydrogen is the simplest element present in the universe. The second most abundant element in the universe is Helium, but still there is ten times more hydrogen than helium in this universe. Hydrogen and Helium make up three quarters of known matter in the universe.