what is the heaviest element with a single letter symbol?
I vote for uranium, U.
The heaviest element with a single-letter symbol is "A" which stands for "Actinium."
To find this answer, you can refer to the periodic table of elements. The periodic table organizes all known chemical elements in increasing order based on their atomic number. Each element is represented by a symbol, usually one or two letters. The atomic number corresponds to the number of protons in an atom's nucleus.
To determine the heaviest element with a single-letter symbol, you can start by looking at the periodic table and focusing on elements with a single letter as their symbol. The first element in this category is "H" (Hydrogen), but it is the lightest element. Continuously moving across the periodic table, you will find "He" (Helium) as the second element, which is also not the answer.
Further along, you will encounter "B" (Boron), followed by "C" (Carbon), and so on. None of these elements have a single-letter symbol.
Finally, you will come across "Ac" (Actinium), which is element 89 on the periodic table. Actinium is the heaviest element with a single-letter symbol "A," making it the correct answer to the question.