The most common pairing would be sodium forming an ion after transfering an electron to chlorine
Cement slabs are made by combining various minerals such as tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. Each of these have their own properties that make them best suited for making cement slab. One diagnostic characteristic of a mineral used to make a cement slab is the formation of crystal structure.
Answer:
ΔE(work)= 692 Kj/mole e⁻ = 4.32 x 10²⁴ eV/mole e⁻
Explanation:
ΔE = hc/λ = (6.63 x 10⁻³⁴j·s)(2.99792 x 10⁸m/s)/(1.73 x 10⁻⁷m) = 1.15 x 10⁻¹⁸j/e⁻ x 6.023 x 10²³ e⁻/mole = 691,999 j/mole e⁻ = 692 Kj/mole e⁻ x 6.24 x 10²¹ eV/KJ = 4.32 x 10²⁴ eV/mole e⁻
