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Rutherford bombarded gold foil with alpha (α) particles and found that a small percentage of the particles were deflected. Which of the following was not accounted for by the model he proposed for the structure of atoms?

Sulfur trioxide can react with atmospheric water vapor to form sulfuric acid that falls as acid rain. Calculate the mass in grams of 3.65 × 1020 molecules of SO3.

This data set can be judged to be accurate because the percent uncertainty is relatively small.

Write the correct chemical formula for the following compound: diphosphorus pentoxide

Convert 23.95 cm3 to ft3

How many moles of NaC2H3O2 are in 17.0 grams?

Calculate the molar mass of rubidium carbonate, Rb2CO3.

In the modern model of the atom, the protons and neutrons occupy the central region of the atom named the nucleus.

The bonding in CH4 can be characterized by: Select all that apply

What is the velocity of an electron (m = 9.11 × 10–31 kg) that exhibits a de Broglie wavelength of 10.0 nm?  [1 J = 1 kg•m2•s–2]