Answer Happy

For numerical problems, calculation set up must be shown. For the numbers in scientific notation use correct format: 1.5x10. 1. 2. 3. Complete the table for the following neutral atoms. Ga 132 Xe tin-121 oxygen-15 # Protons. 31 560 Zn²+ Mn4+ As ³- 3C1- 54 Complete the table for the following ions. # Protons # Electrons # Electrons # Neutrons #Neutrons Circle the best answer for each question. What is the mass of an ion that has 16 protons, 18 electrons, and 16 neutrons? a. 50 amu b. 34 amu c. 32 amu d. 18 amu e. 16 amu
4. 5. What is the charge of an ion that has 19 protons, 18 electrons, and 20 neutrons? a. -2 b. -1 6. c. 0 d. +1 c. +2 If an ion had 16 protons and 18 electrons, which element would it be? a. nitrogen (N) b. sulfur (S) c. neon (Ne) d. oxygen (0) List the names and molecule formulas for the seven elements that most commonly exist as diatomic molecules. List the names and symbols for the six elements that are metalloids. Write them in order of increasing numbers of protons (from the smallest number to the highest number). List the names and symbols for: a. three alkali metals b. three halogens c. three noble gases d. three alkaline earth metals - 7. List the names and symbols for: a. three transition metals b. three inner-transition metals. c. three main-group elements
8. Read the following statements about electromagnetic radiation and photons. For each one, circle or underline the uppercase word that makes the statement true. a. b. If two things are inversely related to each other, or inversely proportional to each other, then when one of the things gets larger, the other one gets LARGER / SMALLER. Wavelength and frequency are DIRECTLY Energy and frequency are DIRECTLY Wavelength and energy are DIRECTLY C. If two things are directly related to each other, or directly proportional to each other, then when one of the things gets larger, the other one gets LARGER / SMALLER. d. e. INVERSELY related to each other. INVERSELY related to each other. INVERSELY related to each other. 9. What is the frequency of a photon in the yellow part of the visible range if its wavelength is 575 nanometers? 10. You can listen to Orioles games on FM radio station 105.7. What is the wavelength for photons that have a frequency of 105.7 MHz? 11. The amount of energy needed for a photon to break apart an O₂ molecule into individual oxygen atoms is 8.20x10 Joules. -19 What is the frequency of one of these photons? a. b. What is the wavelength of one of these photons? 12. The photons of visible light have wavelengths from about 400 nm to about 750 nm (assume 2 significant figures). What is the smallest energy that a photon can have, and still be in the visible. light category?
13. Identify the elements from their electron configurations. Write both the name and symbol for each element. a. [Ar] 4s²3d² b. [Ar] 4s 3d¹04p c. [Ne] 3s²3p³ d. [kr] 5s²4d 14. Write electron configurations for these atoms. Use the noble gas core abbreviations. a. beryllium, Be b. C. d. xenon, Xe b. technetium, Te bromine, Br 15. Write electron configurations for these atoms and ions. Use the noble gas core abbreviations. a. As As C. Mn d. Mn²+
16. Identify the elements from their orbital diagrams. Write both the name and symbol for each element. J [Ne] [Kr] ↑↓ ↑↑ 3s 3p ↑↓ 5s [Ar] ↑↓ 2 4s d. [Ne] ↑↓ 3s ↑↓↑↑↓↑↑↓ 4d ↑ 3d ↑ 5p
17. Draw orbital diagrams for the following atoms and ions. Use the noble gas core abbreviations. a. S b. S²- c. Al d. Al³+