pattern - A simple association between letters and numbers

• $X$ 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)?

Answer

I think that

$V$ is $2$
$K$ is $1$ or $3$

Reasoning

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.

Examples

$X \rightarrow$ 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.