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 is a region along the Nile rivers encompassing the areas between what is today central Sudan and southern Egypt. It was the seat of one of the earliest civilizations of ancient Africa, with a history that can be traced from at least 2000 BC onward, and was home to one of the African empires. There were a number of large Nubian kingdoms throughout the Postclassical Era, the last of which collapsed in 1504, when Nubia became divided between Egypt and the Sennar sultanate, resulting in the Ar