The number at the end of an isotope’s name is the number. a) atomic b)neutron c)mass d)electron

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium