Question

a sample containing excited He ion causes further excitation to some highet energy level
1
Determine atomic number of single electron species.
(B) 2
(A) 1
(C)3.
(D) 6
18Determine Principal quantum number of initial excited level of He
a )1
(B) 2
(C) 4
(D) 6
19
Determine Principal quantum number of higher energy level of He
(B) 3
(C) 4
(A) 2
d 6​

Answer 1

Answer:

you can do it

Explanation:

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