What is the second most common element in the universe?
1 Answer
Sep 14, 2017
Mass fraction in parts per million
1 Hydrogen 739,000
2 Helium 240,000
8 Oxygen 10,400
6 Carbon 4,600
10 Neon 1,340
26 Iron 1,090
7 Nitrogen 960
14 Silicon 650
12 Magnesium 580
16 Sulfur 440
Helium is the second most abundant element in the universe .
