'1 of the only 2 letters not found in the abbreviations of elements with atomic numbers up to 100'
Q or J
FUN WITH THE PERIODIC TABLE: 1 of the only 2 letters not found in the abbreviations of elements with atomic numbers up to 100
1 of the only 2 letters not found in the abbreviations of elements with atomic numbers up to 100
1 of the only 2 letters not found in the abbreviations of elements with atomic numbers up to 100
FUN WITH THE PERIODIC TABLE
Q or J
FUN WITH THE PERIODIC TABLE