Rhodium
The forty-seventh element is silver.
Niobium
I think 49th is Indium
The forty eighth element on the periodic table is cadmium, with the symbol Cd and atomic number 48. It is a soft, bluish-white metal commonly used in batteries and pigments.
Molybdenum is the 42nd element on the periodic table.
The forty-fourth element on the periodic table is ruthenium. Ruthenium is a rare transition metal known for its high corrosion resistance and its use in catalytic converters, electronics, and some jewelry.
One fifth of forty is eight. One quarter of eight is two.
45th = forty-fifth.
If you look at the periodic table, Argon's atomic mass is forty, and its atomic number is eighteen. So forty minus eighteen = 22 neutrons
A periodic table should be useful here, there even is a link provided for you below. One glance at the forty second element on the table should give you your answer. the element is molybdenum.
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