Using it
Type a name, a word or a short phrase. The output spells it in element symbols, the tiles below show each element with its atomic number and name, and the steps list the elements and count every possible spelling. Where there is a choice, the one shown uses the fewest tiles.
Set Style to One tile per word for the look of a TV title card: one element picked out in each word, with the rest of the letters plain. It works on any word that contains a symbol, which is nearly all of them.
Which words work
The 118 element symbols are one or two letters long, so a word can be spelled when it can be cut into pieces that are all symbols. Some letters make that hard. No symbol contains J or Q at all, so any word with either is out. A, D, E, G, L, M, R, T, X and Z have no one-letter symbol, so they only work as part of a pair: the A in carbon has to come from Ca or Ar.
Plenty of words manage it. Bacon can be spelled three ways (BaCoN, BaCON and BAcON), and carbon two ways: CaRbON and CArBON.
The table
The symbols, names and groups come from PubChem's periodic table, from H, hydrogen, element 1, to Og, oganesson, element 118. The tiles are coloured by group: alkali metals, transition metals, noble gases and so on.
Questions
Can every name be spelled in elements?
No. Any name with a J or a Q is out, and so are names where a letter like A or E can't be paired with its neighbour, such as James or Emma.
Why does it pick CaRbON rather than CArBON?
Both are right. Where there's a choice, the spelling with the fewest tiles is shown first; the steps name another.
Are any symbols three letters?
Not today. Three-letter placeholders such as Uuo were used for elements before they were named; all 118 now have one- or two-letter symbols.
Sources
Added . What's new