Mass number minus the atomic number equals the number of neutrons. Mass number is the number of particles in an atom that have significant mass. Electrons are assigned a valâ¦ue of 0 since the mass is so much smaller than protons and neutrons. Protons and neutrons are similar in mass and are assigned mass number of 1.
Why Uber is losing so much money? The biggest part of the problem is that Uber is a relative small fish in the market and is not getting nearly enough customers. According to analyst reports, as of August 2015, Didi Kuaidi completed seven million rides as opposed to Uber's one million.
Uber launched in China in 2013 and expanded its operations to roughly 60 cities. But while the market was a top priority, it was also an incredibly costly one. In February, CEO Travis Kalanick said that Uber was losing $1 billion a year in China. Uber and Didi Chuxing are investing billions of dollars in China and both companies have yet to turn a profit there, Kalanick wrote in an announcement about the Didi deal.