If you take only elements which have at most ##n=4## electrons, you indeed get a different number, but this is not what the question is about. What you get from the periodic table depends on the fact that the energy ordering of orbitals doesn't depend only on n, which makes it such that 5s electrons are lower in energy than 4d electrons. But the question says that n is at most 4, so when the 4p orbitals are filled, you will fill the 4d orbitals (and not the 5s as is the case for real atoms). You end up with different electronic configurations.erisedk said:But looking from the periodic table, isn't my answer right?
This means that there are a total of 60 elements that have a value less than or equal to 4.
This could be due to the specific parameters of a scientific experiment or study. The researcher may only be interested in elements with values within this range.
The number of elements may have been determined through data analysis or experimental results. It could also be a predetermined value based on the research objectives.
This count may include any type of element, such as atoms, molecules, or particles. The specific types of elements may vary depending on the context of the research.
This would depend on the specific data or experiment being analyzed. There may be outliers or exceptions that fall outside of the n <= 4 range, but they may not be included in this particular count.