Neon lights is used to describe a number of gaseous discharges that do not contain neon much like xerox is used to describe a photocopier. Describe how a true neon light compares in color to a mercury light .

IR-Absorption is different from Atomic line spectra because a. a photon is absorbed but not emitted this frequency range b. a photon is emitted but not absorbed in this frequency range c. it affects electrons that are more closely held towards the atomic core of the atom d. it involves higher energy and shorter wavelengths e. the energy transitions are not related to the electron orbitals

Draw an “energy level diagram” for a calcium (Ca) atom. HINT: Use the periodic table to determine the number of electrons that are present in a krypton atom. An empty (no electrons) energy level diagram for multi-electron atoms is shown on the left. Electrons are arranged (configured) into the orbitals in the way that results in the lowest possible energy. Nature does this by obeying the Aufbau Principle, the Pauli Exclusion Principle, and Hund’s Rules. See the hint from the previous question (3.2) for more details. EXPLANATION: A calcium atom has 20 protons and therefore 20 electrons. Electrons are arranged (configured) into the orbitals in the way that results in the lowest possible energy. Nature does this by obeying the Aufbau Principle, the Pauli Exclusion Principle, and Hund’s Rules. See the hint from the previous question (3.2) for more details. Note that the 4s orbital fills before the 3d orbital because the 4s orbital lower in energy than the 3d orbitals (the 3d orbitals are…

Imagine a universe where there are three spin states for the electron instead of two (for example, spin up, spin down, and spin cray-cray). The number of subshells per shell and number of orbitals per subshell stay the same, but an orbital now holds three electrons instead of two. The names of the elements stay the same. Draw the top three rows of what this new periodic table would look like, indicating which elements are in which groups in our new universe, and show the electron configurations of each of the elements of these three rows.