bohr model hw\ndraw the bohr model for the following elements. write the number of protons and neutrons in…

Explanation:

Step1: Recall atomic number and mass - number for Calcium

The atomic number of calcium (Ca) is 20, so the number of protons is 20. The most common isotope of calcium has a mass - number of 40. Since mass - number = protons+neutrons, the number of neutrons is 40 - 20=20. The electron - shell configuration is 2, 8, 8, 2.

Step2: Recall atomic number and mass - number for Lithium

The atomic number of lithium (Li) is 3, so the number of protons is 3. The most common isotope of lithium has a mass - number of 7. So the number of neutrons is 7 - 3 = 4. The electron - shell configuration is 2, 1.

Step3: Recall atomic number and mass - number for Sodium

The atomic number of sodium (Na) is 11, so the number of protons is 11. The most common isotope of sodium has a mass - number of 23. So the number of neutrons is 23 - 11=12. The electron - shell configuration is 2, 8, 1.

Step4: Recall atomic number and mass - number for Hydrogen

The atomic number of hydrogen (H) is 1, so the number of protons is 1. The most common isotope of hydrogen has a mass - number of 1, so the number of neutrons is 1 - 1 = 0. The electron - shell configuration is 1.

Step5: Recall atomic number and mass - number for Carbon

The atomic number of carbon (C) is 6, so the number of protons is 6. The most common isotope of carbon has a mass - number of 12. So the number of neutrons is 12 - 6 = 6. The electron - shell configuration is 2, 4.

To draw the Bohr models:

• For calcium: Draw a nucleus with 20 protons and 20 neutrons. Then draw 4 electron - shells. Put 2 electrons in the first shell, 8 in the second, 8 in the third, and 2 in the fourth.
• For lithium: Draw a nucleus with 3 protons and 4 neutrons. Then draw 2 electron - shells. Put 2 electrons in the first shell and 1 in the second.
• For sodium: Draw a nucleus with 11 protons and 12 neutrons. Then draw 3 electron - shells. Put 2 electrons in the first shell, 8 in the second, and 1 in the third.
• For hydrogen: Draw a nucleus with 1 proton and 0 neutrons. Then draw 1 electron - shell with 1 electron.
• For carbon: Draw a nucleus with 6 protons and 6 neutrons. Then draw 2 electron - shells. Put 2 electrons in the first shell and 4 in the second.

Answer:

For Calcium: Protons = 20, Neutrons = 20, Electron - shell configuration 2, 8, 8, 2. For Lithium: Protons = 3, Neutrons = 4, Electron - shell configuration 2, 1. For Sodium: Protons = 11, Neutrons = 12, Electron - shell configuration 2, 8, 1. For Hydrogen: Protons = 1, Neutrons = 0, Electron - shell configuration 1. For Carbon: Protons = 6, Neutrons = 6, Electron - shell configuration 2, 4. (Note: The actual drawing of the Bohr models should be done on paper with circles for the nucleus and electron - shells and dots for electrons.)