Chemical Code

Challenge

Our crazy chemistry professor wrote a secret code on the blackboard:

1

9 57 32 10 111 39 85 8 115 8 16 42 16

He also mumbled something like “essential and elementary knowledge”.

Solution

This sounds like we have to convert atomic numbers to their corresponding sybols to get the flag

We find a python package to help us, PyAstronomyand use it to decode the flag

from PyAstronomy import pyasl

an = pyasl.AtomicNo()
ct =[9,57,32,10,111,39,85,8,115,8,16,42,16]

flag = "".join(an.getElSymbol(ct[i]) for i in range(0,len(ct)))

print(flag)  # outputs FLaGeNeRgYAtOMcOSMoS

Flag