Sodium (Na) and potassium (K) are in the same group on the periodic table. Based on their locations, which statement about sodium and potassium is true? O Sodium is less electronegative than potassium.
O Sodium has fewer orbital shells than potassium.
O Sodium has a larger ionic radius than potassium
O Sodium has lower ionization energy than potassium.

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?