The periodic table is shown below.

Fluorine (F), chlorine (Cl), and bromine (Br) can all react easily to form compounds with sodium (Na). Which other element could most likely react to form a compound with sodium?

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.