A strong chemical bond is formed from the transfer or sharing of electrons between atomic centers and relies on the electrostatic attraction between the protons in nuclei and the electrons in the orbitals. The types of strong bond differ due to the difference in electronegativity of the constituent elements.
The name Nubia is of Egyptian origin. The meaning of Nubia is from Nubia Africa, gold. Nubia is generally used as a girl's name. It consists of 5 letters and 3 syllables and is pronounced Nu-bi-a. Transferred use of the name of an ancient kingdom in Africa, which in turn may have derived from the Egyptian word nbw meaning gold.
Nubia. Civilization in Sub-Saharan Africa began in the land of Nubia, which denotes the region around the segment of the Nile River in northern Sudan and southernmost Egypt. Nubia was the southern neighbour of ancient Egypt, whose territory also lay along the banks of the Nile (see History of the Ancient Middle East).ubian merchants acted as middlemen in Egyptian trade with Sub-Saharan Africa, and Nubian warriors often served as mercenaries in the Egyptian army. 23. Nubian civilization was born ca. 2000 BC, with the rise of the city of Kerma (the first Sub-Saharan city).