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All their electrons are in one orbital.

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13y ago
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5mo ago

Group 1 elements (alkali metals) are colorless because they do not absorb visible light within the range of colors that our eyes can detect. This lack of absorption results in them appearing colorless to us.

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Q: What is the reason for group 1 elements colourless?
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Why are group 1 elements univalent?

Group 1 elements have one valence electron in their outermost energy level, which makes them highly reactive and likely to lose that electron to form a stable cation with a +1 charge. This results in them being univalent in most chemical reactions.


What is another name for alkali metals?

Group 1 elements or Group IA elements.


Oxidation number for first 20 elements?

The oxidation numbers for the first 20 elements in the periodic table are typically as follows: Group 1 elements: +1; Group 2 elements: +2; Group 13 elements: +3; Group 14 elements: +4 or -4; Group 15 elements: -3; Group 16 elements: -2; Group 17 elements: -1; Group 18 elements: 0. Keep in mind that oxidation numbers can vary in different compounds and contexts.


What group is k in and what is the name of the elements?

Potassium (K) is in Group 1 of the periodic table of elements. The elements in Group 1 are known as the alkali metals.


What is the oxidation number for all elements in this group?

Group 1 elements have an oxidation number of +1.


What is the name of the family of elements in Group IA 1?

Group IA or group 1 elements are known as alkali metals.


Which group is more reactive on the periodic table group 1 or 2?

Group 1 elements are more reactive than that of group 2 elements.


What are elements that are in the group and have only 1 outer electron shell called?

alkali metals (group 1 elements)


What is the number of valence electrons for the elements in group 1?

Elements in group 1 (alkali metals) have 1 valence electron. This single electron is in the outermost energy level of the atom, making these elements very reactive and likely to lose this electron to achieve a stable electron configuration.


How many electrons do group 1 elements lose to become ions?

Group 1 elements lose 1 electron to become ions with a +1 charge.


What are some properties of the elements in group one?

Group 1 elements are metallic in nature. They have 1 electron in their outermost octet.


Which is more reactive group 1 or 2?

Group 1 elements, also known as alkali metals, are generally more reactive than group 2 elements, known as alkaline earth metals. This is because alkali metals have one electron in their outermost shell, making them more willing to lose that electron to achieve a stable electron configuration. Alkaline earth metals have two electrons in their outermost shell, requiring more energy to lose those electrons and become stable.