The phrase "atoms were placed" is correct and usable in written English.
It can be used in contexts discussing scientific experiments, materials science, or atomic theory where the positioning of atoms is relevant.
Example: "In the experiment, atoms were placed in a specific arrangement to observe their interactions under varying conditions."
Alternatives: "atoms were positioned" or "atoms were arranged".
Unless otherwise stated, all non-H atoms were refined with anisotropic atomic displacement parameters, while the hydrogen atoms were placed in geometrically calculated positions.
At the optimum kinetic energy condition, we could observe in pair correlation functions that significant amount of carbon atoms were placed at a meta-stable site of atomic distance of 2.1 Å.
All the hydrogen atoms were placed in calculated positions.
Hydrogen atoms were placed at their idealized positions with distances of 0.95 Å for C HAr.
To obtain the contour plot of NICS, ghost atoms were placed on the plane of the molecule with a step size of about 1 Å.
The final refinement was carried out by full-matrix least-squares techniques with anisotropic thermal data for non-hydrogen atoms on F 2. All the hydrogen atoms were placed in calculated positions (Tables 1, 2 and 3).
If atoms are placed in a cavity tuned to the transition between two atomic levels such that there are more atoms in the excited state than in the ground state, they can be induced to transfer their excess energy into the electromagnetic radiation resonant in the cavity.
In some cases, chlorine atoms are placed at the edge sites to examine the effect of chlorine on the binding of Hg, HgCl and HgCl2.
When hydrogen atoms are placed in a magnetic field, their nuclei (protons) tend to have their magnetic moments preferentially aligned in the direction of the field.
The forbidden zones, corresponding to a porous pattern, are first defined in a unit cell and then atoms are placed outside of the forbidden zones based on specified symmetry and distance constraints.
All the N atoms are placed on the plane of the carbon skeleton, and the high N content provides plenty of active heteroatom sites decorated uniformly in the hexagonal honeycomb-like pores.
