The atomic numbers of elements A, B, C and D | vedclass

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(C) Given that the atomic number of $B$ is $Z$. Since $B$ is a noble gas,it belongs to group $18$.Therefore,the element $A$ with atomic number $Z-1$ i

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$(1)$ and $(3)$

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(C) Given that the atomic number of $B$ is $Z$. Since $B$ is a noble gas,it belongs to group $18$.Therefore,the element $A$ with atomic number $Z-1$ is a halogen (group $17$),which has a very high electron affinity.The element $C$ with atomic number $Z+1$ is an alkali metal (group $1$),which exists in a $+1$ oxidation state.The element $D$ with atomic number $Z+2$ is an alkaline earth metal (group $2$),which exists in a $+2$ oxidation state.Thus,statement $(1)$ is correct ($A$ is a halogen) and statement $(3)$ is correct ($D$ is an alkaline earth metal). Statement $(2)$ is incorrect because $C$ exists in a $+1$ oxidation state.

Column-$I$	Column-$II$
$A. Z = 37$	$P. p-$ block
$B. Z = 42$	$Q. f-$ block
$C. Z = 34$	$R. d-$ block
$D. Z = 92$	$S. s-$ block

The atomic numbers of elements $A, B, C$ and $D$ are $Z-1, Z, Z+1$ and $Z+2$,respectively. If $B$ is a noble gas,choose the correct statements from the following:
$(1)$ $A$ has high electron affinity
$(2)$ $C$ exists in $+2$ oxidation state
$(3)$ $D$ is an alkaline earth metal

Similar Questions

Represent different types of periodic properties in the periodic table.

Which of the following sequences represents the atomic numbers of only representative elements?

Match the following elements with their respective blocks in the periodic table based on their atomic number $(Z)$:
Column-$I$ Column-$II$
$A. Z = 37$ $P. p-$ block
$B. Z = 42$ $Q. f-$ block
$C. Z = 34$ $R. d-$ block
$D. Z = 92$ $S. s-$ block

Which of the following orders is not correct for the given property?

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The atomic numbers of elements $A, B, C$ and $D$ are $Z-1, Z, Z+1$ and $Z+2$,respectively. If $B$ is a noble gas,choose the correct statements from the following:$(1)$ $A$ has high electron affinity$(2)$ $C$ exists in $+2$ oxidation state$(3)$ $D$ is an alkaline earth metal