If two atoms are isotopes of the same element, the atoms must have 1.
the same number of protons and the same number of neutrons
2.
the same number of protons and a different number of neutrons
3.
a different number of protons and the same number of neutrons
4.
a different number of protons and a different number of neutrons

Which is a character of nuclear fusion but not nuclear fission

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa