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Because it contains just one proton in its 'Nucleus'.
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What elements are found in group 1 and period 1?
Hydrogen is placed in group-1 and period-1 in the periodic table as hydrogen has only one electron.
What is group 4 on the periodic table of elements?
Hydrogen is period 1 and group1 element. It has only one electron.
Where is the metal on the periodic table?
Yes, the metals are to the left of the staircase except hydrogen is not one- it is a nonmetal.
Why hydrogen is placed in alkali metals or in first group of modern periodic table?
As with all alkali metals, hydrogen has one electron in its outermost shell.
Explain why hydrogen is not included in group 1 in most versions of the modern periodic table?
It might be included in group 1 (one). Hydrogen is a special case, because even though it does have the defining characteristic of all group 1 elements, which is that it has one valence electron, it is physically very different from all the other group 1 elements. Hydrogen (at normal temperatures and pressures) is a gas, and all the other group 1 elements are solid metals. As a result, some forms of the periodic table show hydrogen above the rest of the table, in its own special place. However, it does belong in group 1.
What is the group is hydrogen in the periodic table?
group one
Why was the element hydrogen placed in group 1 of the periodic table?
Hydrogen has one valence electron.
Why hydrogen and helium are out of periodic table?
Hydrogen and helium aren't 'out' of the periodic table, hydrogen just has characteristics that match up with group one (very reactive) and helium has characteristics that match up with group 8 (non reactive).
What is the group name for the elements in group one?
Group I of the periodic table is called the Alkali Metals group (Hydrogen-Lithium group)
Were are nonmetals located in the periodic table?
the nonmetals are located in the right of the periodic table and only one (hydrogen) is located in group 1, period 1
What group on the periodic table has only one nonmetal?
Either IA (Hydrogen) or IIIA (Boron)
What period of the periodic table is hydrogen in?
Hydrogen is technically classed as a group one element, as it only has one electron!
Which element has one valence electrons?
Any element in group 1
What elements are found in group 1 and period 1?
Hydrogen is placed in group-1 and period-1 in the periodic table as hydrogen has only one electron.
What is group 4 on the periodic table of elements?
Hydrogen is period 1 and group1 element. It has only one electron.
What is one element on the periodic taBLE?
hydrogen
What is group one in the periodic table?
Alkali metals. This is the most reactive group on the periodic table
