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13.6k
Chlorine has the atomic number of 44.
false
0
elements
10,382
Oxygen is necessary for aerobic respiration in living organisms.
true
1
elements
10,390
Neptunium has the symbol Na.
false
0
elements
10,393
Helium has the symbol Xe.
false
0
elements
10,399
Magnesium has the symbol Br.
false
0
elements
10,400
Aluminum has the symbol Sc.
false
0
elements
10,402
Cadmium has the atomic number of 37.
false
0
elements
10,410
Boron has the symbol Pm.
false
0
elements
10,416
Hafnium has the symbol Nd.
false
0
elements
10,417
Gadolinium has the symbol Hg.
false
0
elements
10,418
Yttrium has the atomic number of 26.
false
0
elements
10,428
Manganese has the symbol Gd.
false
0
elements
10,431
Praseodymium is used in strong magnets and as a yellow pigment.
true
1
elements
10,435
Thorium has the atomic number of 78.
false
0
elements
10,438
Sodium has the atomic number of 24.
false
0
elements
10,441
Nickel has the symbol Rb.
false
0
elements
10,447
Cadmium has the symbol Ir.
false
0
elements
10,449
Rhenium has the symbol Tm.
false
0
elements
10,450
Platinum is a highly valued, non-reactive metal used in jewelry, catalytic converters, and fuel cells.
true
1
elements
10,452
Molybdenum has the symbol Np.
false
0
elements
10,455
Tungsten has the symbol Zr.
false
0
elements
10,458
Sulfur has the atomic number of 59.
false
0
elements
10,474
Praseodymium has the symbol Sc.
false
0
elements
10,476
Copper has the symbol Ta.
false
0
elements
10,484
Lanthanum has the symbol Po.
false
0
elements
10,486
Lead has the atomic number of 31.
false
0
elements
10,489
Manganese has the atomic number of 1.
false
0
elements
10,497
Platinum has the symbol La.
false
0
elements
10,501
Arsenic has the atomic number of 53.
false
0
elements
10,502
Fluorine has the symbol F.
true
1
elements
10,504
Iridium has the atomic number of 56.
false
0
elements
10,519
Zirconium has the atomic number of 6.
false
0
elements
10,521
Potassium has the atomic number of 34.
false
0
elements
10,525
Helium has the atomic number of 62.
false
0
elements
10,526
Carbon has the symbol In.
false
0
elements
10,545
Gold is highly valued for its conductivity, malleability, and resistance to corrosion, used in electronics, jewelry, and dentistry.
true
1
elements
10,546
Calcium is essential for bone formation and muscle function.
true
1
elements
10,548
Zirconium has the symbol Eu.
false
0
elements
10,551
Europium has the symbol Ga.
false
0
elements
10,559
Cobalt is used in strong, permanent magnets and as a blue pigment.
true
1
elements
10,561
Lutetium has the symbol Be.
false
0
elements
10,562
Calcium has the symbol P.
false
0
elements
10,566
Iridium has the symbol Fe.
false
0
elements
10,571
Neon has the atomic number of 63.
false
0
elements
10,574
Copper has the atomic number of 50.
false
0
elements
10,577
Iodine is essential for thyroid function and is used as a disinfectant.
true
1
elements
10,584
Calcium is a toxic element used in pesticides and some alloys.
false
0
elements
10,588
Platinum has the atomic number of 90.
false
0
elements
10,598
Vanadium has the symbol Ba.
false
0
elements
10,600
Fluorine has the symbol N.
false
0
elements
10,601
Phosphorus has the atomic number of 37.
false
0
elements
10,602
Chromium has the atomic number of 39.
false
0
elements
10,603
Hydrogen has the atomic number of 24.
false
0
elements
10,604
Erbium has the atomic number of 41.
false
0
elements
10,608
Barium is used in medical imaging and fireworks.
true
1
elements
10,609
Lead has the symbol Na.
false
0
elements
10,612
Iron has the atomic number of 12.
false
0
elements
10,615
Nitrogen is an essential component of proteins and DNA.
true
1
elements
10,617
Lead is a heavy, toxic metal used in batteries, radiation shielding, and some solders.
true
1
elements
10,621
Aluminum has the atomic number of 36.
false
0
elements
10,625
Molybdenum is used in high-temperature applications and steel alloys.
true
1
elements
10,629
Protactinium has the atomic number of 66.
false
0
elements
10,630
Iron has the symbol Tl.
false
0
elements
10,644
Zinc is an essential trace element in living organisms and is used to strengthen steel.
false
0
elements
10,647
Actinium has the symbol Ar.
false
0
elements
10,652
Bromine has the symbol Mo.
false
0
elements
10,656
Carbon has the atomic number of 71.
false
0
elements
10,659
Nickel is used in coins, batteries, and corrosion-resistant alloys.
true
1
elements
10,661
Antimony has the symbol Al.
false
0
elements
10,666
Iodine has the atomic number of 47.
false
0
elements
10,668
Sulfur is used in the production of sulfuric acid and rubber vulcanization.
true
1
elements
10,669
Sodium is a highly radioactive alkali metal with no practical applications due to its instability.
false
0
elements
10,677
Ruthenium has the atomic number of 62.
false
0
elements
10,679
Radium has the atomic number of 89.
false
0
elements
10,686
Thallium is a toxic element used in some semiconductors and infrared detectors.
true
1
elements
10,704
Zinc has the symbol Fr.
false
0
elements
10,711
Leonardo da Vinci lived in Poland/France.
false
0
inventions
10,718
Blaise Pascal lived in Poland/France.
false
0
inventions
10,719
Thomas Tompion invented the electric generator.
false
0
inventions
10,723
Charles Goodyear lived in U.K.
false
0
inventions
10,732
Lloyd Groff Copeman lived in Germany.
false
0
inventions
10,734
Charles Tellier lived in U.K.
false
0
inventions
10,739
Charles Strite lived in Italy.
false
0
inventions
10,743
Mary Phelps Jacob lived in Ukraine/U.S.
false
0
inventions
10,747
Felix Hoffmann invented the agricultural innovations.
false
0
inventions
10,749
Linus Torvalds lived in Stephanie.
false
0
inventions
10,751
Robert Adler invented the spinning jenny.
false
0
inventions
10,754
Jack Kilby invented the aerodynamics (theoretical).
false
0
inventions
10,756
David Schwarz lived in France.
false
0
inventions
10,758
Christopher Cockerell lived in France.
false
0
inventions
10,759
Nikola Tesla lived in Germany.
false
0
inventions
10,761
Charles Townes lived in Russia.
false
0
inventions
10,766
Yoshiro Nakamatsu lived in U.S.
false
0
inventions
10,771
Willem Einthoven lived in France.
false
0
inventions
10,776
Biruté Galdikas lived in France.
false
0
inventions
10,778
Alexander Fleming lived in France.
false
0
inventions
10,793
August Horch lived in Russia.
false
0
inventions
10,798
Frederick McKinley Jones lived in Japan.
false
0
inventions
10,804
Otis Boykin invented the refrigeration (absorption process).
false
0
inventions
10,807
Ralph Benjamin lived in Italy.
false
0
inventions
10,809