Chemistry, 23.09.2019 17:30, shakira11harvey6
After scientists discovered electrons and protons, what led them to believe there was a third subatomic particle? a. elements have molar masses that are numerically equal to their atomic mass. b. the mass of an atom's nucleus is greater than the combined masses of an atom's protons. c. the mass of an atom is greater than the combined masses of an atom's protons and electrons. d. elements have isotopes that have the same atomic number but different atomic mass numbers.
Answers: 1
Chemistry, 23.06.2019 00:30, evelynalper08
Which radioisotope is used to date fossils? a. oxygen-16 b. carbon-14 c. uranium-238 d. carbon-12
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Chemistry, 23.06.2019 09:00, Drellibus70011
Agust of wind blowing east pushes against a ball. when will the wind do work on the ball? when the ball moves to the east when the ball moves to the north when the ball stays in one place when the ball moves north or south
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