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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.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoBecause like alkali metals, it forms positive ions
Wiki User
∙ 13y agoBecause hydrogen contain one electron in it's outer most shell similar to other alkali metals
Wiki User
∙ 10y agobecause it is the smallest and first element and also it has one valence electron as do other alkali metals.
Wiki User
∙ 12y agoit really doesnt that's how unique it is
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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.
Why is hydrogen (H) placed with elements in Group 1A?
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.
What is the name of the group IA elements?
Alkali Metals
Why is hydrogen placed in group one of the periodic table?
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.
What is the group number of alkali earth metals?
Alkali earth metals are placed in the second group of the periodic table of Mendeleev.
What is the family of hydrogen?
Hydrogen is placed in group 1, along with alkali metals
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.
Why is hydrogen (H) placed with elements in Group 1A?
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.
What is the name of the group IA elements?
Alkali Metals
Which group has 1 valence electron?
Group 1- the Alkali metals and also Hydrogen.
What gas seem to be out of place?
Hydrogen. It is placed with the alkali metals in group 1 because of its electron configuration, but it is a nonmetal.
What is the group that hydrogen is in?
Hydrogen is a non-metal; it's in group VII
Where is alkali metals located on the periodic table and their group number?
The alkali metals are group 1, also known as group 1A.
Why is hydrogen placed in group one of the periodic table?
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.
What is the group number of alkali earth metals?
Alkali earth metals are placed in the second group of the periodic table of Mendeleev.
Why hydrogen is different from other alkali metals if it is different then why it is place in group 1 a?
Hydrogen is placed in the group 1 because has some chemical similarities and electron configuration (one electron).
Which group is hydrogen and why is it placed in group you instead of the non metallic group?
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.
