une the folowing model to answer go C. man many lone pain are found in the model above? dot (P): A. 1 6. How many bonding electrons are four.2 the model above? A. 1 B. 3 7. How many neutrons does Copper-65 contain? A. 29 8. How many neutrons does Barium-139 contain? B. 36 A. 56 9. How many electrons does strontium contain? B. 137 A. 56 B. 84 10. How many valence electrons does neon have? C. 6 A. 2 B. 4 C. 8 11. Which of the following elements have 7 valence electrons? A. Mn C. F B. N D. Ag 12. How many valence ce electrons are in an atom of sulfur? A. 2 C. 6 B. 16 D. 5 13. How many va valence electrons are in an atom of phosphorus? A. 2 C. 4 B. 3 D. 5 14. Which subatomic particle plays the greatest part in determining the properties of an element? A. proton C. neutron B. electron D. nucleus Determine the number of neutrons in {}^16O A. 4 C. 16 B. 8 D. 24 C. 2 D. C. 2 D. 0 C. 65 D. 92 C. 83 D. 193 C. 38 D. 193

Let's go through each question one by one:<br /><br />1. How many lone pairs of electrons are found in the model above?<br /> - The question does not provide a model to refer to, so it is impossible to determine the number of lone pairs of electrons.<br /><br />2. How many bonding electrons are in the model above?<br /> - Again, without a model to refer to, it is impossible to determine the number of bonding electrons.<br /><br />3. How many neutrons does Copper-65 contain?<br /> - The atomic number of copper (Cu) is 29, which means it has 29 protons. The mass number of Copper-65 is 65. To find the number of neutrons, subtract the number of protons from the mass number: 65 - 29 = 36. Therefore, Copper-65 contains 36 neutrons.<br /><br />4. How many neutrons does Barium-139 contain?<br /> - The atomic number of barium (Ba) is 56, which means it has 56 protons. The mass number of Barium-139 is 139. To find the number of neutrons, subtract the number of protons from the mass number: 139 - 56 = 83. Therefore, Barium-139 contains 83 neutrons.<br /><br />5. How many electrons does strontium contain?<br /> - The atomic number of strontium (Sr) is 38, which means it has 38 electrons. Therefore, strontium contains 38 electrons.<br /><br />6. How many valence electrons does neon have?<br /> - Neon (Ne) is a noble gas with an atomic number of 10. It has 10 electrons, and all of them are valence electrons. Therefore, neon has 10 valence electrons.<br /><br />7. Which of the following elements have 7 valence electrons?<br /> - The elements with 7 valence electrons are those in Group 15 of the periodic table. Among the given options, nitrogen (N) is in Group 15 and has 7 valence electrons.<br /><br />8. How many valence electrons are in an atom of sulfur?<br /> - Sulfur (S) is in Group 16 of the periodic table and has 6 valence electrons.<br /><br />9. How many valence electrons are in an atom of phosphorus?<br /> - Phosphorus (P) is in Group 15 of the periodic table and has 5 valence electrons.<br /><br />10. Which subatomic particle plays the greatest part in determining the properties of an element?<br /> - The properties of an element are determined by the number of protons in its nucleus, which is the atomic number. Therefore, the correct answer is proton.<br /><br />11. Determine the number of neutrons in ${}^{16}O$<br /> - The atomic number of oxygen (O) is 8, which means it has 8 protons. The mass number of ${}^{16}O$ is 16. To find the number of neutrons, subtract the number of protons from the mass number: 16 - 8 = 8. Therefore, ${}^{16}O$ contains 8 neutrons.