Zadanie 1a

The atomic volume of an element is defined by the formula

$\text{atomic volume} = \dfrac{\text{molar mass of the element}\ (\mathrm{g\,mol^{-1}})}{\text{density}\ (\mathrm{g\,cm^{-3}})}$

The table gives the atomic volumes of the elements with atomic numbers 5 to 19, in the form in which each occurs at STP. For an element that is a gas, the value is the volume occupied by one mole of its atoms. Where an element has a second form at STP, the atomic volume of that form is given in the last column.