1. Tardigrade
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  3. Chemistry
  4. The electronic configuration of two elements X and Y is given below: X=1s2, 2s22p6, 3s23p6, 4s2 Y=1s2, 2s22p6, 3s23p5 The formula of the ionic compound that can be formed between these elements is

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Q. The electronic configuration of two elements $X$ and $Y$ is given below :
$X=1s^{2}$, $2s^{2}2p^{6}$, $3s^{2}3p^{6}$, $4s^{2}$
$Y=1s^{2}$, $2s^{2}2p^{6}$, $3s^{2}3p^{5}$
The formula of the ionic compound that can be formed between these elements is

UP CPMTUP CPMT 2010Classification of Elements and Periodicity in Properties

Solution:

$X$ belongs to alkaline earth metal group $(= Ca)$, $\Upsilon$ belongs to halogen group $(= Cl)$. So, the possible ionic compound that can be formed is $CaCl_{2}$