Although hydrogen is written above the alkali metals on the Periodic Table, it is not an alkali metal. It is only placed in that location because it has 1 electron in its outermost s orbital, like the alkali metals. Some tables put hydrogen all by itself above the rest of the table in the middle, with lines running from it diagonally down to both lithium and fluorine, to indicate its ability to either accept or donate a single electron to achieve a filled outer shell. However, it doesn't really belong with the alkali metals or with the halogens.
As with all alkali metals, hydrogen has one electron in its outermost shell.
Properties of Hydrogen. Hydrogen is a nonmetal and is placed above group in the Periodic Table because it has ns1 electron configuration like the alkali metals.
Group one metals are the Alkali Metals, but Hydrogen is placed in group one because of its electron arrangement. All group one metals have one electron in their valence shell (outer most shell) and hydrogen is no exception. It has one electron in its last shell, and is therefore placed in group one even though it is not an alkali metal.
In group 1.
The group IA elements are known as alkali metals. This group includes elements such as lithium, sodium, potassium, rubidium, cesium, and francium. They are highly reactive metals that readily lose their outermost electron to form a 1+ cation.
As with all alkali metals, hydrogen has one electron in its outermost shell.
Properties of Hydrogen. Hydrogen is a nonmetal and is placed above group in the Periodic Table because it has ns1 electron configuration like the alkali metals.
Hydrogen was placed in Group 1 of the periodic table due to its ability to lose one electron to form a +1 ion, similar to the alkali metals in that group. However, hydrogen also exhibits unique properties that differ from the alkali metals, leading to debate about its classification.
Hydrogen is a non-metal; it's in group VII
Hydrogen. It is placed with the alkali metals in group 1 because of its electron configuration, but it is a nonmetal.
Group one metals are the Alkali Metals, but Hydrogen is placed in group one because of its electron arrangement. All group one metals have one electron in their valence shell (outer most shell) and hydrogen is no exception. It has one electron in its last shell, and is therefore placed in group one even though it is not an alkali metal.
Hydrogen is placed in group 1, along with alkali metals
Hydrogen is placed in the group 1 because has some chemical similarities and electron configuration (one electron).
Hydrogen is a group 1 period 1 element. This means it contains only 1 electron. It is place above the alkali metals because if it were with the non-metals it would have to have more electrons. Most diagrams of the periodic table have a divide between it and the alkali metals to remind people of the difference.
In group 1.
Hydrogen is part of the alkali metals group, though it rarely exhibits behavior similar to the other elements in the group.
They're called the alkali metals, and are comprised of lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and Francium (Fr). Group 1A also includes hydrogen (H), though that isn't an alkali metal.