Today’s Tough Trivia question is about music: As of this February’s induction ceremony, there are 338 inductees in the Rock and Roll Hall of Fame. The first group, inducted in 1986, included Chuck Berry, James Brown, Ray Charles, Sam Cooke, Fats Domino, the Everly Brothers, Buddy Holly, Jerry Lee Lewis, Elvis Presley, and Little Richard. Being inducted into the Hall of Fame is not a once-in-a-lifetime event. Several members have been inducted more than once. How many of them can you name (and can you name the acts or as a soloist in which they were so honored)?

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Yesterday’s question was: At last count, there seems to be 118 known elements (some natural, some human-created; some extremely common, some so rare that they’ve never been seen, but only theorized). Of those elements, how many are liquids at room temperature (generally defined as 20 degrees C or 68 degrees F)? And how many of them are gases? The rest, of course, should be solids.

A: Eleven gases (in order of ascending boiling points): Helium (boils at 4.22 Kelvin, which is -269 C or -452 F), Hydrogen, Neon, Nitrogen, Fluorine, Argon, Oxygen, Krypton, Xenon, Radon, and Chlorine.

Three liquids (in order of ascending melting points): Mercury, Bromine, and Copernicium (which is highly reactive, with an assumed melting point of 283 plus or minus 11 K, which is somewhere between 0 and 20 degrees C, or 30 to 70 degrees F).

Four almosts: Cesium melts at 301.7 K (28.5 degrees C, or 83.3 degrees F). Gallium melts at 302.91 K (29.76 degrees C, or 85.58 degrees F). Rubidium melts at 312.45 K (39.30 degrees C, or 102.74 degrees F). Phosphorus melts at 317.3 K (44.15 degrees C, or 111.5 degrees F). There are seven elements about which we don’t yet know their melting or boiling points: Dubnium (number 105, symbol Db), Seaborgium (106, Sg), Bohrium (107, Bh), Hassium (108, Hs), Meitnerium (109, Mt), Darmstadtium (110, Ds), and Roentgenium (111, Rg).

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Ian’s Tough Trivia is a daily feature of this blog (Monday’s category is History; Tuesday is Arts; Wednesday is Science; Thursday is Entertainment; and Friday is Grab Bag). Each day, I post a tough question, as well as the answer to the previous day’s question. Simply comment on this post with your answer. I’ll approve the comments after the next question is posted. Sure, you can probably find the answers by searching the web, but what’s the fun in that?
And if you’ve got a favorite trivia question—or even just a topic for which you’d like to see a question—let me know! Reader participation is warmly encouraged.