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Metals useually have few valence electrons and they loose electrons from their outermost shell thus, forming an ion with positive charge (cations). This is because it is easy for metals to loose electron and attain stable or octet configuration similar to rare gases. Hence to attain stability metals lose valence electrons. E.g. sodium (At no. =11 ; electronic configu-1s2, 2s2, 2p6, 3s1) metal has one valence electron and it is easy for it to loose 1e rather to gain 7e to attain stable configuration. Hence it loose 1e forming Na+ cation.

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Why is hydrogen both metal and non metal?

Since it has 1 valence electrons it is a metal and also non metal because it may loose 1 electron to stabilize or also gain 1 electron to stabilize. Metals loose electrons and non-metals gain electron and hydrogen have both metallic (to loose) and non-metallic (to gain) properties.


What would alkali metal atoms need in order to end up with the same stable electron arrangements as the noble gas?

Alkali metal atoms need to lose one electron to achieve the stable electron arrangement of the nearest noble gas. This is because the noble gases have a full valence shell, which is more stable. By losing an electron, the alkali metal atoms achieve a full valence shell and become more stable.


Does alkali needs to gain one electron to have a completely outer shell?

I assume you are talking about the Alkali metal group which in fact would readily loose their outer electron to form a 1+ cation (have a full valence electron shell).


How do you find out what metal is the most reactive?

Metals which can easily loose electron are most reactive. They are present in group-1.


Why the metal is very reactive?

Metals , generally, have electronic configuration: with outermost electron having 1,2 or 3. Since, they can easily attain noble gas configuration to attain stability; they readily loose electron.


What factor makes it easy for sodium to loose its outermost electron?

This electron is the only one in a new outermost electron shell as you progress through the periodic table. So it is relatively easy for it to hop off and join to a Chlorine atom, for example, which is one short of a completed shell. So it's good in forming ionic compounds,


What kind of atom tends to loose one electron?

The Alkali Metals loose one electron in order to achieve a nobel gas configuration.


How can hydrogen act ad a metal and a nonmetal?

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When an alkali metal reacted with a non metal what happens to the loan outer shell electron?

The electron outside the shell donate its electron to the one inside the shell


When a group 1 metal reacts what happens to the outer shell electrons of its atoms?

When a group 1 metal reacts, its outer shell electron(s) are transferred to another atom or shared in a chemical bond. This results in the metal ion having a full outer shell of electrons, usually achieved by losing one electron to become stable with a +1 charge.


What alkali metal requires 4 electron shells?

Cesium (Cs) is the alkali metal that requires 4 electron shells as it has the electron configuration [Xe] 6s1.


Is gaining an electron when bonding a metal or nonmetal?

Gaining an electron typically occurs with nonmetals when they bond with other elements. This is because nonmetals tend to have a higher electronegativity, or tendency to attract electrons, compared to metals. Metals usually lose electrons to form positive ions, while nonmetals typically gain electrons to form negative ions.