scientists
periodic table
fossils
100
Mark Zuckerburg
who invented Facebook?
100
Cadmium.
What is number 48 on the periodic table?
100
Dinosouar fossils.
What is the most common fossils found?
200
Galileo
Who was the first scientist to come up with the first eye glass?
200
Iodine.
What is number 53 on the periodic table?
300
Dmitri Mendeleev.
Who is ... the first scientist to devolope the periodic table?
300
Neon.
What is number 10 on the periodic table?
400
Alexander Cummings.
Who made the toilet?
400
Darmstadtium.
What is number 110 on the periodic table?
500
Ancient Chinese people
Who made the first toothbrush?
500
Thorium.
What is number 90 on the periodic table?
M
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