An atom has an atomic number of 17 and an atomic mass 0f 35: how many electrons does this atom have?

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.

idk and i also need to know where are those bio brainy acts lol