Question

first to solve all correctly will get brainliest

cf7ae865030aa1c947a333f06546ca63.pdf

Answer 1

calculate the energy associated with the first orbit of He

+

E=−13.6

n

2

z

2

=−13.6×

1

2

2

2

=54.4 ev

Radius of orbit r=529×

z

n

2

nm

=529×

2

12

=264.5 nm