In a neutral atom, which of the following numbers are the same for an element? Select one: The number of electrons and the number of neutrons The number of protons and the number of electrons The number of protons and the number of neutrons

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

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