Iodine 131 and iodine 126 are the same in the sense that, they both have the same number of electrons and protons in their atoms, it is only the number of their neutrons that is different. Iodine 131 has 78 neutrons while iodine 126 has 73 neutrons.
The runner ran a total of 8800 yards.
Answer:
Sprinkling of powder on the carom board <u>reduces</u> friction.
