What is JJ Thomson atomic?

Excuse me, could you please clarify what you mean by "JJ Thomson atomic"? It seems like you might be referring to the work of J.J. Thomson, the pioneering physicist who discovered the electron in 1897. However, the term "JJ Thomson atomic" is not a commonly used phrase in physics or chemistry. If you're asking about Thomson's discovery of the electron and its significance in understanding the atomic structure, then I can explain that Thomson's experiment, known as the cathode RAY tube experiment, demonstrated that atoms are not indivisible particles but are made up of smaller, negatively charged particles, which he called electrons. This discovery was a major breakthrough in atomic theory and paved the way for further understanding of the subatomic world. Is this what you were asking about, or did you have something else in mind?