Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)

Explanation:

The expression for the deBroglie wavelength is:

Where,  

is the deBroglie wavelength  

h is Planck's constant having value

m is the mass of electron having value

v is the speed of electron.

Given that v =

Applying in the equation as:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

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explanation: