- $X$ is 5.
- $U$ is 9.
- $O$ is 0 or 7.
- $I$ is 4 or 5 or 7.
What is $V$? And what is $K$ (two options)?
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I think that
$V$ is $2$
$K$ is $1$ or $3$
Find the elements in the periodic table whose chemical symbol begins with the letter. The associated numbers are those in the tens position of the corresponding atomic numbers.
$X \rightarrow$ is Xenon (Xe) whose atomic number is 54
$U \rightarrow$ Uranium (U) with atomic number 92
$O \rightarrow$ Oxygen (O) and Osmium (Os) with atomic numbers 08 and 76
$I \rightarrow$ Indium (In), Iodine (I) and Iridium (Ir) with atomic numbers 49, 53, 77
$V \rightarrow$ Vanadium (V) with atomic number 23
$K \rightarrow$ Potassium (K) and Krypton (Kr) with atomic numbers 19 and 36.
Note: Oganesson (Og) has not been included here, either it is too new or we are only considering elements less than 100.