Uranium is an element that is often used in nuclear power plants. uranium atoms are very large, and the substance can be dangerous if it is not carefully contained. what is true about all uranium atoms? a .they each have the same number of nuclear particles. b. they each have the same number of neutral particles. c. they each have the same number of neutrons. d. they each have the same number of protons.

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

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.