👉 In physics and chemistry, a deuteronomic element is an element with one proton and two neutrons in its nucleus. This means that it has no electron (e) or neutron (n). The name "deuteronomic" comes from the fact that it can be represented as a single symbol, which is often used for atomic numbers (1, 2, 3, etc.) to distinguish between different elements. For example, in the periodic table of elements, deuterium has