Answer:Moseley used atomic number of an element and not the atomic mass unlike Mendeleev
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has a longer wavelength than x- rays and gamma rays, has a shorter wavelength than infrared and visible light, as the frequency of the wave increase its wavelength decrease
Answer:Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.
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