Write about electronic configurations

Na has a lower IE1 than Mg, but Mg has a lower IE2 than Na because: The radius of Na is smaller than that of Mg. IE1 increases from left to right across a period and IE2 decreases from left to right across a period.

Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0 mL of C2H5OH with 112.7 mL of H2O at 20°C. The density of the C2H5OH is 0.789 g/mL at 20°C. (Assume the density of water at this temperature is 1.00 g/mL.)

A white solid is flammable and dissolves in hexane. Would you expect this compound to be organic or inorganic?

How does convection affect the weather?

Which sequence represents a correct order of historical developments leading to the modern model of the atom?

A. A rapid cooking method that uses high heat from a source located above the food.

What is the number of copper atoms in 1naira coin which weighs 7.39g assuming the material of which the coil is made is 86% copper Na=n/n number of moles/n

Which of the following statements are consistent with Rutherford's nuclear theory as it was originally stated? (A) The volume of an atom is mostly empty space. (B) The nucleus of an atom is small compared to the size of the atom.

Which has a larger atom calcium or barium?

When a spring is compressed, the energy changes from kinetic to potential which best describes this change?