How are both stability and change seen in properties of elements?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

What substance has a mass of 9.5g and volume of 2.1cm^3

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest