Select the correct answer. According to Bohr's model of the hydrogen atom, the atomic orbit with a quantum number of n= 1 has an orbit radius of 0.0529 nanometers. The orbit with a quantum number n= 2 has a radius of 0.212 nanometers. Which number would be closest to the radius of the orbit with the quantum number n = 5?

1. 0.476 nm
2. 1.32 nm
3. 0.846 nm
4. 1.9 nm
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The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

What are the chemical names of these compounds? ke: mg3n2: reset next