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Coal
Coal
56
Silicit??
barium
Iron is a meta element. Atomic mass of it is 56.
There are four protons. Also four neutrons and four electrons
Iron is a metal element. Atomic mass of it is 56.
56 kw per hour
Element 20 is Tin. Element 38 is Strontium. Element 56 is is Barium. Element 100 Fermium. Fermium is artificially created, and has no stable isotopes. In general, there are no stable isotopes heavier than Bismuth (element 83).
35
Iron (Fe) has At No 26 and At Wt 55.85. Is that close enough to 56 for your question.