Nhamba yeAtomu (Atomic Number) apa zvichireva nhamba inopangidza chipanda chenhangande yemushonga paChapotera cheNhangande Dzakadevana. Nhamba iyi yakaenzana nehuwandu hwe maneutron ari pakati peAtomu. Sokuti nitrogen inotora 7 senhamba yeatomu, zvoreva kuti ine maneutron 7 nemhodzigetsi 7.