16. draw bohr models showing how the electrons are represented in atoms of carbon and sodium.
16. draw bohr models showing how the electrons are represented in atoms of carbon and sodium.
Answer
Explanation:
Step1: Recall electron - shell rules
The first shell can hold a maximum of 2 electrons, and the second shell can hold a maximum of 8 electrons.
Step2: Determine electrons in carbon
Carbon has an atomic number of 6. So, it has 6 electrons. 2 electrons go in the first shell and 4 in the second shell. In the Bohr model, we draw a nucleus with 6 protons and 6 neutrons (for the most common isotope), and then draw two electron - shells: the first with 2 dots (representing electrons) and the second with 4 dots.
Step3: Determine electrons in sodium
Sodium has an atomic number of 11. So, it has 11 electrons. 2 electrons go in the first shell, 8 in the second shell, and 1 in the third shell. In the Bohr model, we draw a nucleus with 11 protons and 12 neutrons (for the most common isotope), and then draw three electron - shells: the first with 2 dots, the second with 8 dots, and the third with 1 dot.
Answer:
For carbon: Draw a nucleus. Around it, draw two electron - shells. The first shell has 2 dots and the second shell has 4 dots. For sodium: Draw a nucleus. Around it, draw three electron - shells. The first shell has 2 dots, the second shell has 8 dots, and the third shell has 1 dot.