[填空题]
An atom is being model(ivrh4r2iy5g;4 lum qed with an electron assumed to be orbiting the g58h1 *bf-;vtqsqyfwa- e,sh nucleus in the first energy level with a speed of g8qhsfs;, yq-wa-f5v hbe1*t $2.18\times10^6ms^{-1}$
The orbital radius of the ground state, in m, is given by
$r=(0.53\times10^{−10})n^2$
Where
$n$ = order of the energy level.
1.Determine the charge of the nucleus. q = $\times10^{−19}$C
2.(1)The electron moves to the second energy level where it orbits with a kinetic energy of $5.44\times10^{−19}\,J$.
(2)Explain whether the centripetal acceleration increases, decreases or stays the same.
Calculate the orbital period of the electron in the second energy level. T = $10^{−15}\,s$
