11 grade chemistry others
For an element with atomic number 19, the 19th electron will occupy:A.L-shellB.M-shellC.N-shellD.K-shell
For an element with atomic number 19, the 19th electron will occupy:A.L-shellB.M-shellC.N-shellD.K-shell
1 Answer
Askiitians Tutor Team
For an element with atomic number 19, the 19th electron will occupy the N-shell.
Here’s the reasoning:
The atomic number 19 corresponds to potassium (K).
Potassium's electron configuration is 1s² 2s² 2p⁶ 3s¹.
The distribution of electrons is:
K-shell (n=1) holds 2 electrons (1s²)
L-shell (n=2) holds 8 electrons (2s² 2p⁶)
M-shell (n=3) holds 1 electron (3s¹)
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