Final answer:
The series of numbers represents the atomic numbers of elements in the periodic table, starting from Thorium (90).
Step-by-step explanation:
The sequence 94, 98, 102, 106, 110 represents elements with atomic numbers increasing by 4. In the periodic table of elements, this sequence corresponds to the elements with atomic numbers starting from Plutonium (Pu) with an atomic number of 94 to Nobelium (No) with an atomic number of 102. Therefore, the counting starts from 90 which corresponds to Thorium (Th).
The sequence 94, 98, 102, 106, 110 is counting up by 4 each time. To determine the starting number, we need to subtract 4 from 94 repeatedly until we reach a number that is not divisible by 4. By subtracting 4 repeatedly, we find that the starting number is 82. Therefore, the sequence is counting from 82.