The History of the periodic table
Chemical symbol
atomic number
Atomic mass
name with symbol
100
1869 years
when was the periodic table created
100
oxygen
What does O stand for in the periodic table.
100
Crabon
What is 6 in the Periodic Table
100
Carbon
What is 12,011 in the Periodic Table
100
Fluorine
what is F
200
Dmitri Mendeleev
Who created the periodic table
200
Helium
What does He stand for in the periodic table
200
Lead
What is 82 in the Periodic Table
200
Nickel
What is 58.693 in the Periodic Table
200
Phosphorus
what is P
300
148 years
how old is the periodic table
300
Silver
What does Ag stand for in the periodic table
300
Seaborgium
What is 106 in the Periodic Table
300
Tantalum
What is 180.95 in the Periodic Table
300
Gallium
what is Ga
400
118
how many elements are in the periodic table.
400
Lead
What does Pb stand for in the periodic table
400
Cerium
What is 140 in the Periodic Table
400
Terbium
What is 158.93 in the Periodic Table
400
Hassium
what is Hs
500
Richard Feynman
who predicted this // that number 137 defines the table’s outer limit; adding any more protons would produce an energy that could be quantified only by an imaginary number, rendering element 138 and higher impossible. Maybe.
500
Oganesson
What does Og stand for in the periodic table
500
Oganesson
What is 118 in the Periodic Table
500
Lutetium
What is 174.97 in the Periodic Table
500
Californium
What is Cf
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