Question

Determine the highest occupied energy level in the following elements:

1. He
2. Be
3. Al
4. Ca
5. Sn

Answer 1

The highest occupied energy levels for He, Be, Al, Ca, and Sn are the 1st, 2nd, 3rd, 4th, and 5th energy levels, respectively, as determined by their electron configurations and positions on the Periodic Table.

Step-by-step explanation:

To determine the highest occupied energy level of the given elements He, Be, Al, Ca, and Sn, we can look at their electron configurations, which are largely determined by their positions on the Periodic Table.

• He (Helium): With an electron configuration of 1s², Helium's highest occupied energy level is the 1st energy level.
• Be (Beryllium): Its electron configuration is 1s² 2s², so the highest occupied energy level is the 2nd energy level.
• Al (Aluminum): The electron configuration is [Ne] 3s² 3p¹, indicating that the highest occupied energy level is the 3rd energy level.
• Ca (Calcium): With an electron configuration of [Ar] 4s², Calcium's highest occupied energy level is the 4th energy level.
• Sn (Tin): The electron configuration for Tin is [Kr] 5s² 4d¹° 5p², thus the highest occupied energy level is the 5th energy level.

Using the Periodic Table provides a clear way to evaluate the electron configurations and thus the highest energy levels for elements.

Answer 2

Sure! I'd be happy to help you determine the highest occupied energy level for each of these elements:

1. He (Helium) - Helium has two electrons, which occupy the 1s orbital. Therefore, the highest occupied energy level in helium is 1.

2. Be (Beryllium) - Beryllium has four electrons. The first two electrons occupy the 1s orbital, while the remaining two electrons occupy the 2s orbital. Thus, the highest occupied energy level in beryllium is 2.

3. Al (Aluminum) - Aluminum has thirteen electrons. The first two electrons fill the 1s orbital, the next two electrons occupy the 2s orbital, and the following six electrons go into the 2p orbital. Therefore, the highest occupied energy level in aluminum is 2.

4. Ca (Calcium) - Calcium has twenty electrons. Again, the first two electrons fill the 1s orbital, the next two occupy the 2s orbital, and the following six fill the 2p orbital. The remaining ten electrons occupy the 3s orbital. Hence, the highest occupied energy level in calcium is 3.

5. Sn (Tin) - Tin has fifty electrons. Same as before, the first two electrons fill the 1s orbital, the next two go into the 2s orbital, and the following six occupy the 2p orbital. After that, ten electrons fill the 3s orbital and the 3p orbital. Finally, the remaining fourteen electrons fill the 4s orbital and 4p orbital. Therefore, the highest occupied energy level in tin is 4.

Mr.Feast is wrong