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Because It has 1 proton. The elements on the Periodic Table are order by the number of protons.
What else can I help you with?
What group is hydrogen in in the periodic table?
Hydrogen is the first element in the periodic table of Mendeleev - atomic number 1. Hydrogen is placed in the group and period 1 of this table.
Why isn't hydrogen included in the periodic table?
Hydrogen is included in the periodic table. It is the first element on the table and has an atomic number of 1. It is placed in Group 1 and Period 1 of the periodic table.
Why hydorgen become first element in periodic table?
Hydrogen has only 1 electron and hence it is placed at the top in the periodic table.
What does the letter H stand for in the periodic table?
"H" stands for Hydrogen on the periodic table.
The first element on the periodic table table of elements is helium?
No, the first element on the Periodic Table is Hydrogen, but because of its unusual behaviour it is usually placed by itself, not next to any other elements. The second element is Helium.
What is the correct placement of hydrogen in the periodic table?
It is placed in group 1, period 1 on the modern periodic table
Is carbon the first element in the periodic table?
NO!!! Carbon is No. 6 in the Periodic Table. Hydrogen is No. 1 in the Periodic Table.
In which group is hydrogen in periodic table?
it is placed in group 1
Is xenon in the first period of the periodic table?
No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
Was the first element on the periodic table of elements carbon?
NO!!! Hydrogen (H) is the first element on the Periodic Table. Reason Atomic No. = 1 Atomic mass( of protium) = 1 Carbon lies 6th position. Atomic No. = 6 Atomic mass = 12
The first element on the periodic table is what?
Dimitri Mendeleev is credited with the the creation of the first modern and rational periodic table of chemical elements; but other chemists also had contributions.
What were the first elements that were found in the periodic table?
The first elements discovered and placed on the periodic table were hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, and magnesium. These elements were identified based on their unique chemical properties and atomic structures.
