tổng số hạt cơ bản trong nguyên tử nguyên tố M là 95. Số hạt mang điện nhiều hơn số hạt không mang điện là 25. Tính P, E,N

Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor and is used as a gamma-ray source in the treatment of certain types of cancer. if the wavelength of the gamma radiation from a cobalt-60 source is 1.00 × 10-3 nm, calculate the energy of a photon of this radiation.

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

What must happen before a body cell can begin mitotic cell division