Atomic StructureEasy
Question
Beryllium fourth electron will have the four quantum numbers :-
Options
A.n → 1
l → O
m → O
s → 1/2
l → O
m → O
s → 1/2
B.n → 1
l → 1
m → 1
s → 1/2
l → 1
m → 1
s → 1/2
C.n → 2
l → O
m → O
s → -1/2
l → O
m → O
s → -1/2
D.n → 2
l → 1
m → O
s → +1/2
l → 1
m → O
s → +1/2
Solution
4Be → 1s22s2
Fourth electron present in 2s subshell
for 2s subshell, n = 2, l = 0, m = 0 s = - 1/2 or + 1/2
Fourth electron present in 2s subshell
for 2s subshell, n = 2, l = 0, m = 0 s = - 1/2 or + 1/2
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
What would be the approximate quantum number (n) for a circular orbit of hydrogen, 1 × 10–5 cm in diameter?...The orbital with zero orbital angular momentum is-...An electron in a hydrogen like atom makes transition from a state in which its de-Broglie wavelength isλ1 to a stat...The wavelength of Kα-characteristic X-rays produced is λ, when cathode rays strike on a metal of atomic number Z. What s...An isotone of Ge is...