potassium sulfate or A because K2 is potassium and SO4 is sulfate
The Sun, like most other astronomical objects (planets, asteroids, galaxies, etc.), rotates on its axis. Unlike Earth and other solid objects, the entire Sun doesn't rotate at the same rate. ... The Sun's rotation rate decreases with increasing latitude, so that its rotation rate is slowest near its poles.
Answer:
Atoms X and Atom Y are isotope is right answer