Which one pair of atoms or ions will have same configuration?

Question

Which one pair of atoms or ions will have same configuration? (A)  F+ and Ne  (B)  Li+ and He-  (C)  Cl- and Ar  (D)  Na and K

Tardigrade Admin · Accepted Answer

Chlorine has a tendency to accept one electron to acquire inert gas configuration (octet rule). Hence, it form Cl- ion by taking up one electron and acquires stable configuration of 18Ar. Cl-=1s2,2s22p6,3s23p6=[Ar]

Q. Which one pair of atoms or ions will have same configuration?

$F^{+}$ and $N e$

$L i^{+}$ and $H e^{-}$

$C l^{-}$ and $A r$

$N a$ and $K$

Chlorine has a tendency to accept one electron to acquire inert gas configuration (octet rule). Hence, it form $C l^{-}$ ion by taking up one electron and acquires stable configuration of $_{18} A r .$ $C l^{-} = 1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6} = [A r]$

Q. Which one pair of atoms or ions will have same configuration?

F+ and Ne

Li+ and He−

Cl− and Ar

Na and K

Chlorine has a tendency to accept one electron to acquire inert gas configuration (octet rule). Hence, it form Cl− ion by taking up one electron and acquires stable configuration of 18​Ar. Cl−=1s2,2s22p6,3s23p6=[Ar]

$F^{+}$ and $N e$

$L i^{+}$ and $H e^{-}$

$C l^{-}$ and $A r$

$N a$ and $K$

Chlorine has a tendency to accept one electron to acquire inert gas configuration (octet rule). Hence, it form $C l^{-}$ ion by taking up one electron and acquires stable configuration of $_{18} A r .$ $C l^{-} = 1 s^{2}, 2 s^{2} 2 p^{6}, 3 s^{2} 3 p^{6} = [A r]$