Oceanic<span> crust tends to be denser and thinner than </span>continental<span> crust, so the denser</span>oceanic<span> crust gets bent and pulled under, or </span>subducted<span>, beneath the lighter and thicker </span>continental<span> crust. </span>
If two atoms** have the same number of protons, they are the same element. They have the same atomic number. The only thing that would change with the number of neutrons is the mass number.
B or two relative <span>abundance of each isotope</span>