This program introduces the mole as the ultimate "standard container" for directly comparing large numbers of atoms. It also extends the use of the mole to standardize gas volume comparisons, and introduces Avogadro’s number. (10 minutes)

Tell a Friend! Your Name: Your Email: Your Friend's Email: Your Message: We respect your privacy and will not use your friend's address without permission. Item#: BVL3622 Copyright date: ©1992 VHS ISBN 978-1-4213-7255-6 DVD ISBN 978-1-4213-7256-3

Part of the Series : The Mole Concept

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		How Atoms Bond The forces of attraction and repulsion within atoms are examined, and the different types of bonds that form are shown. Covalent bonds, in which atoms share electrons, and ionic bonds, in which an electron is traded from one atom to another, are expl...(more details)		VHS $49.95 DVD $49.95 DVD + 3-Year Streaming $74.93 3-Year Streaming $49.95
		Electron Arrangement When physicists Erwin Schrodinger and Werner Heisenberg applied wave mechanics to the atom, they theorized that Bohr's energy levels consisted of sub-levels, or orbitals. This program demonstrates the importance of the number of electrons in the oute...(more details)		VHS $49.95 DVD $49.95 DVD + 3-Year Streaming $74.93 3-Year Streaming $49.95
		Avogadro's Hypothesis This program advances Avogadro's hypothesis that equal volumes of gas at the same temperature and pressure can contain equal numbers of particles. It also examines Avogadro's assertion that each particle of gas can contain no fewer than two atoms and...(more details)		VHS $49.95 DVD $49.95 DVD + 3-Year Streaming $74.93 3-Year Streaming $49.95
		Relative Mass This program looks at how to compare the masses of atoms in order to understand how they differ from one another. The example of two truckloads of pigs and turkeys shows how relative mass can be determined and how the same principle can apply to calc...(more details)		VHS $49.95 DVD $49.95 DVD + 3-Year Streaming $74.93 3-Year Streaming $49.95
		Relative Atomic Mass This program introduces the mass spectrometer, the modern method of measuring atomic mass. It uses the analogy of cars of various masses traveling at a fixed speed to illustrate this instrument's acting principles. (10 minutes)(more details)		VHS $49.95 DVD $49.95 DVD + 3-Year Streaming $74.93 3-Year Streaming $49.95

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