A Russian Chemist and inventor who formulated the periodic table.
100
What element was most recently confirmed?
Element 117(Ununseptium)
100
What are the 4 major elements in the human body?
Oxygen, Hydrogen, Nitrogen, Carbon
100
What is the abbreviation for Oxygen?
O
200
Who was John Dalton?
He was an English chemist who was best known for his pioneering in the modern atomic theory.
200
How many groups are on the periodic table?
18
200
What is the most prominent element in our atmosphere?
Nitrogen
200
What is the abbreviation for gold?
Au
300
Who's wish was it to find a better way of organizing chemistry?
Dmitri Mendeleev
300
How many classes are on the periodic table?
8
300
How many elements did Mendeleev predict?
5
300
What is the abbreviation for Neon?
Ne
400
Who proceeded to calculate atomic weights from percentage compositions of compounds using arbitrary system to determine the likely atomic structure of each compound?
John Dalton
400
How many elements are in nature?
90
400
What is the main difference between Mendeleev's periodic table and the modern periodic table?
Mendeleev's increased by atomic weight, whereas the modern table increases by atomic number.
400
What is the abbreviation for Mercury?
Hg
500
How did Dmitri Mendeleev develop the periodic table?
He dreamed a table where all the elements fell into place as required
500
How many elements are on the periodic table?
118
500
What is the first element to be made artificially?