Question

DATE
12). Give reasons.
a) Alkali metals are kept in inert solvent
b). Alkale metals and halogens do not occur
free in nature.
c). Alkali and alkaline earth metals compound
wotally from electrovalent compounded
d. Inert gasses do not form compound.​

Answer 1

Answer:

1. Due to their reactivity, alkali metals are always stored in inert solvent such as kerosene oil. And this coating helps them prevent them from coming in contact with air and moisture.
2. They are never found in nature uncombined because they are unstable and they react fast to other elements. They bond well with all elements except the noble gases.
3. Alkali metals and alkaline earth metals have 1 and 2 valence electrons, respectively, in their outermost shell. They can lose electrons to atoms of non-metals to form an electrovalent compound.
4. All noble gases have full s and p outer electron shells (except helium, which has no p sublevel), and so do not form chemical compounds easily. Because of their high ionization energy and almost zero electron affinity, they were not expected to be reactive

Explanation:

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Answer 2

Answer:

1. due to reactive nature elements of group 1 kept in inert solvent like kerosene

2. because they are unstable and they react very fast to other elements

3. because they have one and two Valence Electrons so they can give their electrons to non metals and form ionic bonds with them

4. because they have full valence shell I eat they have 8 electrons in their valence shell means they have full village shall so they don't form compound other elements

Explanation:

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