In a simple model of the Hydrogen atom, an electron moves in uniform circular motion with a speed of 2.2 x 106 m/s around a proton. (a) Determine the radius of the electron’s orbit. (b) Find the centripetal acceleration of the electron in this orbit.

a) Radius of electron' s orbit = 5.29 × 10⁻¹¹ m

b) Centripetal Acceleration, α = 9.15 × 10²² m/s²

Explanation:

The force of attraction between a proton and an electron of the simple model of Hydrogen atom is obtained from literature to be 8.325 × 10⁻⁸ N

It is this force that is driving the the circular motion of the electron. Centripetal force is given by

F = mv²/r

r = mv²/F

m = mass of the electron = 9.11 × 10⁻³¹ kg

v = velocity of the electron = 2.2 × 10⁶ m/s

r = 9.11 × 10⁻³¹ × (2.2 × 10⁶)²/(8.325 × 10⁻⁸)

r = 5.29 × 10⁻¹¹ m

b) centripetal acceleration, α = F/m or v²/r

α = (8.325 × 10⁻⁸)/(9.11 × 10⁻³¹) = (2.2 × 10⁶)²/(5.29 × 10⁻¹¹) = 9.15 × 10²² m/s²

the correct name for the n3 ion is azide. azide is a polyatomic anion with a -1 charge and is written as n3 -1. it consists of three nitrogen atoms bonded together. hope i . let me know if you need anything else.

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.