Using your answer from Part A, calculate the volume of a mole of Na atoms (in cm3/mol). Assume that the entire volume is occupied by Na atoms leaving no gaps or holes between adjacent atoms.

No table found. the question asks for covalent bond based on electronegativies

Nonmetals usually react by gaining electrons

Order of filling levels and sublevels of electrons: 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²3f¹⁴5d¹⁰6p⁶for an element with 5 electrons in the 3d energy level: full configuration: 1s²2s²2p⁶3s²3p³.