If you have one kilogram of radionuclide, how much will remain after one half-life has passed?

If we start with 1 kg or 1000 g of radionuclide, after one half-life has passed, one-half of the original amount of radionuclide will remain. Therefore, 500 g of the radionuclide will remain. The half-life is the time it takes for a radioactive substance to decay to half its initial amount.

Photo means light and synthesis means combination so combination of light

Since the black bears eat both fruit and meat that makes them an omnivore