The correct electronic configuration of the element $Au$ is
- A$[Xe] 4f^{14} 5d^{10} 6s^2$
- B$[Xe] 4f^{14} 5d^9 6s^2$
- C$[Xe] 4f^{14} 5d^{10} 6s^1$
- D$[Xe] 4f^{14} 5d^9 6s^1$
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German silver is an alloy of $Cu$ with
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View SolutionMatch the following:
List-$I$ (Element) List-$II$ (Block) $A$. $Cd$ $I$. $f$-block $B$. $Eu$ $II$. $s$-block $C$. $Se$ $III$. $d$-block $D$. $Ba$ $IV$. $p$-block
The correct answer is:
| List-$I$ (Element) | List-$II$ (Block) |
| $A$. $Cd$ | $I$. $f$-block |
| $B$. $Eu$ | $II$. $s$-block |
| $C$. $Se$ | $III$. $d$-block |
| $D$. $Ba$ | $IV$. $p$-block |
The correct answer is:
Which of the following ions is colourless in spite of the presence of unpaired electrons?
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