Questions from General Chemistry

Q: Identify the following three elements. a. The ground-

Identify the following three elements. a. The ground-state electron configuration is [Kr]5s24d105p4. b. The ground-state electron configuration is [Ar]4s23d104p2. c. An excited state of this elemen...

Q: Give the electron configurations for the following atoms. Use the noble

Give the electron configurations for the following atoms. Use the noble gas notation.

Q: Compare the atomic sizes of each pair of atoms. State the

Compare the atomic sizes of each pair of atoms. State the larger atom for each pair.

Q: Compare the ionization energies of each pair of atoms. State the

Compare the ionization energies of each pair of atoms. State the atom with the larger ionization energy for each pair.

Q: Three elements have the electron configurations 1s22s22p63s2, 1s22s22p63s23p4, and 1s22s22p63s23p64s2

Three elements have the electron configurations 1s22s22p63s2, 1s22s22p63s23p4, and 1s22s22p63s23p64s2. The first ionization energies of these elements (not in the same order) are 0.590, 0.999, and 0.7...

Q: How is the energy carried per photon of light related to the

How is the energy carried per photon of light related to the wavelength of the light? Does short-wavelength light carry more energy or less energy than long-wavelength light?

Q: Calculate the percent by mass of the element listed first in the

Calculate the percent by mass of the element listed first in the formulas for each of the following compounds. a. methane, CH4 b. sodium nitrate, NaNO3 c. carbon monoxide, CO d. nitrogen dioxide,...

Q: When an atom energy from outside, the atom goes from a

When an atom energy from outside, the atom goes from a lower energy state to a higher energy state.

Q: Because a given element’s atoms emit only certain photons of light,

Because a given element’s atoms emit only certain photons of light, only certain are occurring in those particular atoms.

Q: How does the energy possessed by an emitted photon compare to the

How does the energy possessed by an emitted photon compare to the difference in energy levels that gave rise to the emission of the photon?