Across
- 3. The number named after ? equals 6.022 x 10^23.
- 5. The molecule ClF3 has a ? molecular geometry and two lone pairs on the central Cl.
- 7. The ? frequencies of electromagnetic radiation correspond to molecular rotation.
- 10. Which of the following best explains why atomic radii decrease across a period from left to right in the periodic table? The number of protons increases, increasing ?
Down
- 1. The molecule ClF3 has a ? electron geometry and two lone pairs on the central Cl.
- 2. The ? frequences of electromagnetic radiation correspond to molecular vibration.
- 4. The solubility of gases in liquids typically (increases/decreases) with increasing temperature because gases have more kinetic energy at higher temperatures, allowing them to escape the liquid more easily.
- 6. The energy of a photon is 4.0 × 10⁻¹⁹ J. What is the wavelength of this photon? The wavelength of the photon is hundred nanometers.
- 7. What day is October 23?
- 8. These gas molecules have a volume of 22.4 L at STP.
- 9. Which statement is correct for the second ionization energy of magnesium (Mg)? It is (more/less) than the first ionization energy because Mg⁺ has a smaller atomic radius