Question

each given subshell is associated with a particular length energy time mass question 4 1 pts as electrons are added to successive atoms on the periodic table, they tend to fill low - energy orbitals late first belatedly last

Explanation:

1. In atomic structure, each subshell has a specific energy level. Subshells are regions in an atom where electrons are likely to be found, and they are associated with different energy values.
2. According to the Aufbau principle, electrons fill the lowest - energy orbitals first as they are added to atoms in the periodic table. This is to achieve a more stable electron - configuration.

Answer:

First question: energy
Second question: first