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What is the atomic number of chemical elements?

Which chemical element has the lowest and which has the highest atomic number?

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Among all chemical elements, Hydrogen has the lowest atomic number (1), and Oganesson has the highest atomic number (118).

Here is the list of 118 chemical elements with their atomic number:

  • Actinium (89)
  • Aluminium (13)
  • Americium (95)
  • Antimony (51)
  • Argon (18)
  • Arsenic (33)
  • Astatine (85)
  • Barium (56)
  • Berkelium (97)
  • Beryllium (4)
  • Bismuth (83)
  • Bohrium (107)
  • Boron (5)
  • Bromine (35)
  • Cadmium (48)
  • Caesium (55)
  • Calcium (20)
  • Californium (98)
  • Carbon (6)
  • Cerium (58)
  • Chlorine (17)
  • Chromium (24)
  • Cobalt (27)
  • Copernicium (112)
  • Copper (29)
  • Curium (96)
  • Darmstadtium (110)
  • Dubnium (105)
  • Dysprosium (66)
  • Einsteinium (99)
  • Erbium (68)
  • Europium (63)
  • Fermium (100)
  • Flerovium (114)
  • Fluorine (9)
  • Francium (87)
  • Gadolinium (64)
  • Gallium (31)
  • Germanium (32)
  • Gold (79)
  • Hafnium (72)
  • Hassium (108)
  • Helium (2)
  • Holmium (67)
  • Hydrogen (1)
  • Indium (49)
  • Iodine (53)
  • Iridium (77)
  • Iron (26)
  • Krypton (36)
  • Lanthanum (57)
  • Lawrencium (103)
  • Lead (82)
  • Lithium (3)
  • Livermorium (116)
  • Lutetium (71)
  • Magnesium (12)
  • Manganese (25)
  • Meitnerium (109)
  • Mendelevium (101)
  • Mercury (80)
  • Molybdenum (42)
  • Moscovium (115)
  • Neodymium (60)
  • Neon (10)
  • Neptunium (93)
  • Nickel (28)
  • Nihonium (113)
  • Niobium (41)
  • Nitrogen (7)
  • Nobelium (102)
  • Oganesson (118)
  • Osmium (76)
  • Oxygen (8)
  • Palladium (46)
  • Phosphorus (15)
  • Platinum (78)
  • Plutonium (94)
  • Polonium (84)
  • Potassium (19)
  • Praseodymium (59)
  • Promethium (61)
  • Protactinium (91)
  • Radium (88)
  • Radon (86)
  • Rhenium (75)
  • Rhodium (45)
  • Roentgenium (111)
  • Rubidium (37)
  • Ruthenium (44)
  • Rutherfordium (104)
  • Samarium (62)
  • Scandium (21)
  • Seaborgium (106)
  • Selenium (34)
  • Silicon (14)
  • Silver (47)
  • Sodium (11)
  • Strontium (38)
  • Sulfur (16)
  • Tantalum (73)
  • Technetium (43)
  • Tellurium (52)
  • Tennessine (117)
  • Terbium (65)
  • Thallium (81)
  • Thorium (90)
  • Thulium (69)
  • Tin (50)
  • Titanium (22)
  • Tungsten (74)
  • Uranium (92)
  • Vanadium (23)
  • Xenon (54)
  • Ytterbium (70)
  • Yttrium (39)
  • Zinc (30)
  • Zirconium (40)

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