関連ワード:
2nd most abundant element in the earth's crust and have 14 neutrons 2nd most abundant element in the earth's crust with 14 neutrons 2nd most abundant element in the earth's crust second most abundant element in the earth crust 2nd most abundant element in the earth's crust and has 14 neutrons two most abundant elements in the earth's crust second most abundant metal in the earth crust second most common element in the earth's crust second most abundant element in the earth's crust and have 14 neutrons two most common elements in the earth's crust
