Câu 28. Khối lượng của electron tính bằng kilogam là A. me = 1,67.10–27.
B. me = 1,6.10–19.
C. me = 1,67.10–24.
D. me = 9,1.10–31

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

What term describes technology that operates on an atomic level

What is the molecular weight of copper