Do you think there is water on exoplanets

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i

How do cracks affect the rate of weathering?