A) calculate δh o fus and δs o fus for sodium metal and determine the melting temperature of sodium. δh o fus kj/mol δs o fus j/k · mol tmelt °c

(b) calculate δh o vap and δs o vap for sodium metal and determine the boiling temperature of sodium. δh o vap kj/mol δs o vap j/k · mol tboil °c

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation:

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.