What property of an element does the group number identify in a numbering system that uses "A" and "B"?
A. The number of core electrons
B. The number of valence electrons
c. The number of inner electrons
D. The electrons closest to the nucleus

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback