It is (1A).
It is hydrogen. This element is the only one in its group because it is extremely unique and shares none of the properties of other gases.
The element that belongs to the hydrogen family is hydrogen itself. Hydrogen is located in group 1 of the periodic table, known as the alkali metals.
Classification of hydrogen is: group 1, period 1 in the periodic table of Mendeleev; hydrogen is the first element in this table.
Hydrogen is the element that does not fit neatly into any group in the periodic table because it possesses unique properties that differentiate it from other groups. Hydrogen has characteristics of both metals and non-metals, making it difficult to classify within a specific group.
Hydrogen is not in a group with other families. It actually is in group 1 of the Periodic Table. It is a diatomic atom when it combines with other elements.
The element Hydrogen is in the group number 1.
hydrogen
If we look at the periodic table, we can see that the first element in Group I is Hydrogen.
It is hydrogen. This element is the only one in its group because it is extremely unique and shares none of the properties of other gases.
Any element in group 1
The element that belongs to the hydrogen family is hydrogen itself. Hydrogen is located in group 1 of the periodic table, known as the alkali metals.
Hydrogen is the element with unique properties that doesn't fit in any group.
Classification of hydrogen is: group 1, period 1 in the periodic table of Mendeleev; hydrogen is the first element in this table.
Hydrogen is in group 1 but is not an alkali metal.
Hydrogen is in Group 1 and is part of the Alkali Metals group.
Hydrogen is a non-metal; it's in group VII
The alkali metals are the metals in Group 1 (the first column of the periodic table). Hydrogen is also in Group 1, and so is technically considered to be part of the alkali metal group/family. Hydrogen is in fact a non-metal, however, and does not generally exhibit behavior similar to the other Group 1 elements.