The velocity of the electron in the ground state of the hydrogen atom is 1.70x10 m/s. What is the wavelength of this electron in meters?

How are elements arranged in a periodic table

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.