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No He didn't knew.
Mendeleev proposed his Periodic Table in 1869 and he died in 1907. Protons was discovered by Rutherford after that (in 1920).
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∙ 11y ago
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What did Dimtri Mendeleev did not know about the periodic table?
Only some elements were discovered during the life of Mendeleev.
What are protrons and neutrons made of?
me
What element has 11 protrons?
Sodium does.
Define the Term Element?
an element is made of protrons nutrons and electrons...
What are the elements of the atoms?
Electrons, Neutrons, and Protrons
How many protrons are in a carbon atom?
there are six protrons
How many protrons and neutrons does Mercury have?
All I know is that Mercury has 80 protons.
What is protrons?
protrons are a charge of the same strength but oppisite parlaritys +1
What did Dimtri Mendeleev did not know about the periodic table?
Only some elements were discovered during the life of Mendeleev.
How many protrons are in zinc?
Zinc has 30 protrons, 36 neutrons, and 66 electrons
How many protrons and neutrons does silicon have in the nucleus?
How many protrons and neutrons does silicon have in the nucleus?
How did Mendeleev know where to leave space in his table?
Mendeleev arranged the elements in order of increasing related Atomic Mass
What did Dmitri Mendeleev do during the Industrial Revolution?
Mendeleev laid the foundation for theperiodictable that we know today
What charge do protrons have?
positive
What are protrons and neutrons made of?
me
Where are the protrons and nuetrons found?
The Nucleus.
How many protrons does magnesium have?
there are 12
