Which are the reasons for atomic radii decreasing across a period? check all that apply.
a.)more neutrons are added to the nucleus
b.)more protons are added to the nucleus
c.)increased force on the electrons to decrease their size
d.)no additional electrons come between the valance electrons and the nuclei
e.)no new energy levels are added

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.