Question
Element having atomic number $17$ is placed in
✓
Answer
d
$(d)$ $17 - 1{s^2}2{s^2}2{p^6}3{s^2}3{p^5}$.
$(d)$ $17 - 1{s^2}2{s^2}2{p^6}3{s^2}3{p^5}$.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Among given species identify the isostructural pairs
Addition of sodium hydroxide solution to a weak acid $(HA)$ results in a buffer of $pH\, 6$. lf ionisation constant of $HA$ is $10^{-5}$ , the ratio of salt to acid concentration in the buffer solution will be
→The compounds containing complex oxyanion $CrO_4^{2-}$ are intensely yellow coloured because
→At $100\,^oC$ the $K_w$ of water is $55$ times its value at $25\,^oC.$ What will be the $pH$ of neutral solution ? $(log\, 55 = 1.74)$
→Product $(Q)$ is
→The number of $- CH _2$ - (methylene) groups in the product formed from the following reaction sequence is. . . . . . .
→For the reaction $2Al + 3MnO\xrightarrow{\Delta }A{l_2}{O_3} + Mn;$ If $108\,g$ of $Al$ and $213\,g$ of $MnO$ are heated then which of the following is incorrect?
→The shape of carbonium is
Oxalic acid $+ A$ $\rightarrow$ $[Figure]$
→hence $A$ $\xrightarrow{{conc.\,{H_2}S{O_4}}}$ $B,$ $B$ is :
The mole fraction of urea in an aqueous urea solution containing $900\ g$ of water is $0.05$ . If the density of the solution is $1.2 g \ cm ^{-3},$ the molarity of urea solution is $. . . . . ($Given data : Molar masses of urea and water are $60 g\ mol ^{-1}$ and $18 g\ mol ^{-1}$, respectively$)$
→