Here are today’s questions. Answers will be published on Monday. The theme for this week ran from Mon-Thu; a new theme will come up on Monday.

And the questions follow:

1. Chemical element number 95 was given what name, as it was analogous to Europium which was right above it in the lanthanide series?
2. While Berkelium (element 97) was named for the location of the laboratory where it was first synthesized, what element got its name from the person after whom said laboratory was named?
3. The Society for Heavy Ion Research has helped discover several transuranic elements, and is located in which city in Germany? Element 110 was named after this city.
4. Founded in 1943, which state is the Oak Ridge National Laboratory in the USA located in? A transuranic halogen has derived its name from this place.
5. Which physicist, the first woman to become a full professor of physics in Germany, played a key role in the discovery of nuclear fission? While she was overlooked for the Nobel Prize in Physics, element 109 would posthumously be named after her.

Here are the answers to 2026: Week 1, Quiz 4:

1. Standard Oil
2. De Beers
3. Dutch East India Company
4. IRCTC (Indian Railway Catering and Tourism Corporation)
5. Theme: Types of ships
   • Monitor
   • (Eye) Liner
   • (Chevrolet) Corvette
   • Junk