Why is hydrogen shown by itself on the periodic table?

Answer 1

Hydrogen is the first element on the periodic table. Being first, all the other elements are jealous of it, because it is lightest, it doesn't have neutrons, etc. So it's alone, but not by choice. It loves itself, which is why you see elemental hydrogen in pairs.

Answer 2

Hydrogen is placed by itself because it has unique properties that do not fit neatly into any particular group of elements. It has characteristics of both metals and nonmetals and can form compounds with a wide range of elements. This makes it difficult to classify hydrogen with other elements in a specific group on the Periodic Table.

Answer 3

Hydrogen (the isotope hydrogen-1 or protium) consists of just one proton and one electron, it behaves unlike any other element.

Hydrogen is a gas at room temperature, the lightest chemical element.

Hydrogen was placed in the first group of the Periodic table of Mendeleev because it is considered partially similar to alkaline metals.

Answer 4

Hydrogen consists of just one proton and one electron (the cause of why hydrogen behaves unlike any other element) because of this hydrogen is in a class alone in the periodic table of elements.

Answer 5

It is in its own family because no other element has 1 electron and proton. i hope this helped:)

Answer 6

Hydrogen is in a family by itself because it only has one proton and one electron.

Answer 7

Hydrogen only has one proton and one electron. Hydrogen does not exhibit the same properties shared by the elements making up any of the groups in the Periodic Table.

Answer 8

because it has an atomic number 1 good luck

Answer 9

Because it has different chemical properties than other elements. Hydrogen is a gas at room temperature. It shows a few similar properties for group 1 and 17.

Answer 10

Hydrogen has 1 electron. So it is placed separately on the top.