Is atomic structure basically a part of physics or chemistry?

If you really understand the fine differences between physics and chemistry then this would not bother you. But coming to your question, yes, of course , atomic structure falls in the realm of physics. It is also taught in chemistry too just because to understand chemistry, the knowledge of atomic structure is essential. read more

The interplay of the electrons can connect atoms together, according to some quantum rules. It can form very complicated molecules. This is basically the field of chemistry. Quantum physics deals with the nucleus which is composed of protons and neutrons and the many other sub-atomic particles that can exist at high energy levels. read more

Chemistry is a highly developed specific part of physics that studies ordinary matter, particularly molecules (as in gases), solutions (liquids) and materials (solids) and their transformations. Fundamentally it is all based on the physics of electrons and the electromagnetic field. read more

Atomic Structure. An atom is a complex arrangement of negatively charged electrons arranged in defined shells about a positively charged nucleus. This nucleus contains most of the atom's mass and is composed of protons and neutrons (except for common hydrogen which has only one proton). read more