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Every Element's Atomic Number - Within 15

Guess every element's atomic number within 15 of the correct answer!
Don't lose your five lives or you're out!
You must type three digits for every answer (e.g. 003 for Lithium)
Quiz by
barmanitan
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Last updated: April 9, 2026
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First submittedApril 8, 2026
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Element
Atomic #
Platinum
078
Titanium
022
Seaborgium
106
Radium
088
Niobium
041
Zirconium
040
Bromine
035
Ruthenium
044
Promethium
061
Gadolinium
064
Gallium
031
Indium
049
Protactinium
091
Tellurium
052
Sulfur
016
Lutetium
071
Cerium
058
Polonium
084
Tantalum
073
Neodymium
060
Scandium
021
Carbon
006
Berkelium
097
Fluorine
009
Magnesium
012
Ytterbium
070
Potassium
019
Strontium
038
Beryllium
004
Iron
026
Californium
098
Americium
095
Terbium
065
Osmium
076
Dysprosium
066
Cobalt
027
Roentgenium
111
Erbium
068
Helium
002
Selenium
034
Element
Atomic #
Palladium
046
Chlorine
017
Silver
047
Astatine
085
Einsteinium
099
Copernicium
112
Argon
018
Arsenic
033
Calcium
020
Darmstadtium
110
Technetium
043
Praseodymium
059
Oganesson
118
Cesium
055
Molybdenum
042
Rhodium
045
Aluminum
013
Nitrogen
007
Hassium
108
Mercury
080
Yttrium
039
Xenon
054
Chromium
024
Dubnium
105
Phosphorus
015
Krypton
036
Barium
056
Bohrium
107
Curium
096
Rubidium
037
Neptunium
093
Copper
029
Tin
050
Gold
079
Europium
063
Manganese
025
Antimony
051
Silicon
014
Uranium
092
Element
Atomic #
Boron
005
Meitnerium
109
Rutherfordium
104
Oxygen
008
Thulium
069
Lawrencium
103
Sodium
011
Rhenium
075
Tennessine
117
Lead
082
Vanadium
023
Germanium
032
Flerovium
114
Mendelevium
101
Holmium
067
Iodine
053
Nobelium
102
Moscovium
115
Thallium
081
Samarium
062
Lanthanum
057
Actinium
089
Lithium
003
Zinc
030
Cadmium
048
Nihonium
113
Bismuth
083
Thorium
090
Wolfram
074
Fermium
100
Livermorium
116
Hafnium
072
Nickel
028
Iridium
077
Hydrogen
001
Neon
010
Francium
087
Plutonium
094
Radon
086
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