Type the element's name from its atomic number · exact spelling = 1 mark, close spelling = ½ mark
Question 1 of 20 · Marks 0
Atomic number?
Which element has this atomic number? Type its full name and press Enter.
Capitalisation does not matter. Accepted alternative spellings (such as sulphur or
aluminum) earn full marks. A near-miss spelling earns half marks; the correct
spelling is always shown so you can learn it.