11. Which of the following ions have the same number of electrons as neon? [F, 10Ne, îNa, 12Mg, 13Al] I. Na+ II. Mg2+ III. A13+ IV. F- (a) I and II only (b) II, III and IV only (C) I, II and III only (d) I, II, III and IV​

b. atoms in metallic solids are not arranged in a regular pattern

explanation:

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

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some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg