JEE Main 2014 · 6 Apr · Shift 1 · Chemistry Q31

ChemistrySingle correct+4 / -1Question 31 of 90

The correct set of four quantum numbers for the valence electrons of rubidium atom ( $Z=37$ ) is :

5,0,0,+\frac12

5,1,0,+\frac12

5,1,1,+\frac12

5,0,1,+\frac12

Answer and worked solution

Official answer: A

Rb is $[\ce{Kr}]5s^1$ . Its valence electron has $n=5$ , $l=0$ , $m=0$ , $s=+\frac12$ .

JEE Main 2014 · 6 Apr · Shift 1, Chemistry question 31