The atomic number or the atomic number (Z) is the number of protons in the nucleus of an atom, and at the same time it represents the total number of electrons in a neutral atom. The atomic number determines the type of chemical element on the periodic table.
this or that? which has the lower atomic number?
When Mendeleev arranged the known chemical elements according to their similarity in chemical properties, it was noticed that their arrangement according to atomic mass led to some differences. iodine and tellurium; If they were arranged according to the atomic mass, they would be in the wrong place, but when they were arranged according to the atomic number (the number of protons) this led to their chemical properties matching the arrangement.
Which element with lowest atomic number .
The atomic number is defined as the number of protons present in an element.
this or that? which has the lower atomic number?
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)