The half-life of chromium-51 is 28 days. If a sample contained 510 grams, how much chromium would remain after 1 year?

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f