At each MD time-step we know the cluster each atom belongs to so that we can track where the atoms come from and where they go in terms of AEs. This allows us to draw the chord diagrams of Figure , showing the dynamic interconnections between the various AEs populating the NP. Qualitatively, the width of the corona arcs represents the total number of transitions(or not) that happened to a given cluster during the simulation, and the chords between two clusters show the interconnections between the various AEs, the more the base of the chord is extended the more the cluster has given atom to the one it is connected to. The color of the chords indicates the net flux (e.g., the chord connecting the red (s) and violet (v ) clusters is violet, meaning that more atoms are observed to undergo a transition in s → v direction than vice versa). The results qualitatively show with what AEs the non-native v', s', and c ones are primarily connected, suggesting where these non-native AEs come from and where they go. In particular, v' is connected with e edge atoms (light orange). The non-native concave c and c' AEs are connected with edge (orange), surface (red), and vertex (violet) atoms. The chord diagrams show that the exchange between the AEs increases with temperature (increasing number of chords and of chords' widths moving left-to-right in Figure ). As seen also in Figure , this analysis confirms that at 300 K only surface AEs exchange dynamically, while ss and b clusters remain relatively static and separated (dynamic surface and static interior). Increasing the temperature, and in particular, at 500 K (Figure : right), the interior of the NP starts to communicate with the surface (see cyan and gray chords going towards surface AEs).