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Chemical Reactivity

Two elements ...

Question

Two elements $X$ and $Y$ contain only one electron in the outer level. Element $X$ is reactive and loses electron easily while element $Y$ is relatively unreactive and non-corrosive. The elements $X$ and $Y$ respectively are:

C s

and

L i

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R b

and

N a

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L i

and

C u

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A g

and

A u

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Solution

The correct option is B $L i$ and $C u$
Alkali metals (such as $L i$ ) and coinage metals (such as $C u$ ), have one valence electron each and belong to groups IA and IB respectively. Alkali metals are highly reactive while coinage metals are very less reactive.

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Similar questions

Two elements X and Y contain only one electron in the outer level.Element X is reactive and loses electron easily while element Y is relatively unreactive and non corrosive. The elements X and Y respectively are

(a)Cs and Cu

(b)Li and Cu

Q. There are two elements X and Y. 'X' is the element with the highest

I P

value. 'Y' is the first element in a group possessing strongest reducing property. If X and Y lose 1 and 2 electrons respectively, calculate the

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values of the resultant species.

Q. The element

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Q. Two non-metallic elements X and Y have L and M shells as valence shells respectively with same no. of electrons. Compare the electron affinity values of X and Y.

Q. If two non-metallic elements

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have

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shells as valence shells, respectively with the same no. of electrons. Then, between

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which one has a greater electron affinity?

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Two elements X and Y contain only one electron in the outer level. Element X is reactive and loses electron easily while element Y is relatively unreactive and non-corrosive. The elements X and Y respectively are:

The correct option is B Li and CuAlkali metals (such as Li) and coinage metals (such as Cu), have one valence electron each and belong to groups IA and IB respectively. Alkali metals are highly reactive while coinage metals are very less reactive.

Two elements $X$ and $Y$ contain only one electron in the outer level. Element $X$ is reactive and loses electron easily while element $Y$ is relatively unreactive and non-corrosive. The elements $X$ and $Y$ respectively are:

The correct option is B $L i$ and $C u$
Alkali metals (such as $L i$ ) and coinage metals (such as $C u$ ), have one valence electron each and belong to groups IA and IB respectively. Alkali metals are highly reactive while coinage metals are very less reactive.