Exam 4: Subatomic Particles

Would you use a physical model or a conceptual model to describe the following: a gold coin, dollar bill, car engine, air pollution, virus, spread of sexually transmitted disease?

Which of the following statements best describes electromagnetic radiation?

The energy level diagram ranks orbitals by their ________.

The element bromine, Br (atomic number 35), has two major isotopes of similar abundance, both around 50 percent. The atomic mass of bromine is reported in the periodic table as 79.904 atomic mass units. Choose the most likely set of mass numbers for these two bromine isotopes.

Why are the atomic masses listed in the periodic table not whole numbers?

About how many times larger is a bacterium compared to an atom?

Which of the following atoms is the smallest?

How is it possible for an atom to emit visible light even though the atom is smaller than the wavelength of visible light?

Suppose that a certain atom possesses only four distinct energy levels. Assuming that all transitions between levels are possible, how many spectral lines will this atom exhibit?

Which of the following might best explain the reason why electrons are restricted to certain energy levels in an atom?

If an element has 10 protons and 11 neutrons and 10 electrons, which expression correctly identifies the element?

If the particles of a cathode ray had a greater electric charge, the ray passing through a magnetic field would bend ________.

In the following diagram, which of the following is the measurement of one wavelength?

What is the approximate mass of a carbon atom in atomic mass units (amu)? How about a carbon dioxide molecule?

What is the relationship between the light emitted by an atom and the energies of the electrons in the atom?

When we breathe we inhale oxygen, , and exhale carbon dioxide, , plus water vapor, O. Which likely has more mass, the air that we inhale or the same volume of air we exhale? Does breathing cause you to lose or gain weight?

Using the following generic atom description, choose the correct method for determining the number of neutrons. X

The ray of light within a neon sign bends when a magnet is held up to it because ________.

What was Niels Bohr's explanation for the observation of atomic spectra?

How is it possible to deduce the identity of an element from its electron configuration?