Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element has the lowest boiling point? Answer Helium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the electron configuration [Ar] 3d10 4s1? Answer Copper Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the first noble gas after helium in atomic-number order? Answer Neon Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element has atomic number 26 and gives blood its red color through hemoglobin? Answer Iron Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, what year did Dmitri Mendeleev publish his first widely recognized periodic table? Answer 1869 Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element has the symbol Cl and gives chlorine its name from Greek for greenish-yellow? Answer Chlorine Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element melts at about 30°C and can liquefy in a warm hand? Answer Gallium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element was predicted by Mendeleev and later discovered in 1875? Answer Gallium Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, what is the collective name for group 1 elements other than hydrogen? Answer Alkali metals Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is essential for thyroid hormone production? Answer Iodine Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the highest electrical conductivity at room temperature? Answer Silver Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element in period 3 has three valence electrons? Answer Aluminium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the heaviest officially named element? Answer Oganesson Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the only one with the symbol He? Answer Helium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the largest atomic number among the elements named after places in the United States? Answer Tennessine Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element is in group 14 and has the symbol Si? Answer Silicon Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the longest half-life among all radioactive isotopes? Answer Tellurium-128 Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, what is the group number of the halogens? Answer Group 17 Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, how many officially recognized periods are there? Answer Seven Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element was the first one synthesized artificially and was discovered in 1937? Answer Technetium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the largest atomic radius in the commonly taught periodic trend? Answer Francium Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element is the main iron-containing element in hemoglobin? Answer Iron Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element has the symbol W, taken from its German name wolfram? Answer Tungsten Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element is the only one liquid at room temperature besides mercury? Answer Bromine Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, what is the traditional name for group 18, whose elements include helium and neon? Answer Noble gases Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element has the chemical symbol Hg, from the Latin name hydrargyrum? Answer Mercury Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is named after Scandinavia and has the symbol Sc? Answer Scandium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element begins the lanthanide series in the commonly used 15-element classification? Answer Lanthanum Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the lightest of the alkaline earth metals? Answer Beryllium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is used in smoke detectors as americium-241? Answer Americium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the highest first ionization energy? Answer Helium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element is the main product of carbon-14 radioactive decay? Answer Nitrogen-14 Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is named after the Moon, from the Greek word selene? Answer Selenium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element was named in honor of physicist Enrico Fermi? Answer Fermium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the main metal in brass? Answer Copper Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element was discovered in 1669 by Hennig Brand? Answer Phosphorus Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element is the only one named after a person who won two Nobel Prizes? Answer Curium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the greatest density at standard conditions? Answer Osmium Draw the answer
Hard Hard difficulty. The Periodic Table Which scientist showed that atomic number, not atomic mass, determines the periodic-table order? Answer Henry Moseley Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element was first isolated from pitchblende by Marie and Pierre Curie? Answer Radium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element has the shortest name in English: tin? Answer Tin Draw the answer
Easy Easy difficulty. The Periodic Table On the periodic table, which element is the main constituent of natural diamond? Answer Carbon Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element is named after the ancient Roman name for Paris? Answer Lutetium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the first member of the actinide series? Answer Actinium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element has the highest atomic number among elements found naturally in significant quantities? Answer Uranium Draw the answer
Intermediate Intermediate difficulty. The Periodic Table Which element was first identified in the Sun's spectrum before it was found on Earth? Answer Helium Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element is the heaviest naturally occurring element with a stable isotope? Answer Lead Draw the answer
Intermediate Intermediate difficulty. The Periodic Table On the periodic table, which element is the most abundant in Earth’s crust by number of atoms? Answer Oxygen Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element is the only one whose name begins with the letter J? Answer None Draw the answer
Hard Hard difficulty. The Periodic Table On the periodic table, which element was named after the Nobel Prize founder Alfred Nobel? Answer Nobelium Draw the answer