De broglie developed the idea that matter in motion exhibits properties.

DeBroglie developed the idea that matter in motion exhibits wavelike properties. These can be calculated based on the weight and velocity of objects.

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water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8