80 foot-pounds of work is needed to move the sofa in Tyler's apartment. Which of the following statements is true?

What is the mass of 8 moles of sodium atoms

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom