[填空题]
An atom is being modeoy2ct frw5/ 9nled withoz5pa32 uaqw9k2 we2n an electron assumed to be orbiting the nucleus in the first energy level with a 2a5a3 ewp9u kzwq2on2 speed of $2.18\times10^6ms^{-1}$
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 = $10^{−15}\,s$
