Describe Thomson’s and Millikan’s contributions to atomic theory.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive