Calculate the energy associated with the first orbit of He+ .What is the radius of this orbit?

Calculate the energy associated with the first orbit of He+ .What is t

1.	Calculate the energy associated with the first orbit of He+ .What is the radius of this orbit?
Answer» R of He+=52.9(n)/zPm1 pm=10power-6M52.9pm=52.9 10power-6MR=52.9 * 10power-6(1)/2MR=26.45 10power-6ME=-2.18 * 10power-18(zsquare)/njE=-2.1810power-18(2squre)/1squarejE=-2.1810power-18(4)/1jE=-2.1810 power-18 * 4jE= -8.72*10power-18 j