You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Chemistry

Properties of Ionic compound

First ionizat...

Question

First ionization enthalpy of two elements X and Y are $500 k J m o l^{-} 1$ and $375 k J m o l^{-} 1$ respectively. Comment about their relative positive in a group as well as in a period.

Open in App

Solution

Ionization Energy is the minimum energy required to remove the outermost electron from a gaseous neutral atom to form a cation.
The position of X will be above Y in a group. Because Ionization energy decreases down the group. In the period the position of X will be the right side of Y. Because Ionization energy increases from left to right in a period.

Suggest Corrections

Similar questions

First ionization enthalpy of two elements X and Y are $500 k J m o l^{-} 1$ and $375 k J m o l^{-} 1$ respectively. Comment about their relative positive in a group as well as in a period.

Q. Use the following data to calculate the lattice energy of caesium oxide.
Enthalpy of formation of caesium oxide =

- 233 k J m o l^{- 1}

Enthalpy of sublimation of

C s = + 78 k J m o l^{- 1}

First ionization energy of

C s = + 375 k J m o l^{- 1}

Enthalpy of dissociation of

O_{2} (g) = 494 k J m o l^{- 1} o f O_{2} m o l e c u l e s

First electron affinity of

O = - 141 k J m o l^{- 1} o f O a t o m s

Second electron affinity of

O = + 845 k J m o l^{- 1} o f O^{1 -} i o n s

Q. The first ionization enthalpy

(Δ_{t} H)

values of the third period elements, Na, Mg and Si are respectively 496, 737 and 786 kJ mol

^{- 1}

. Predict whether the first

Δ_{t} H

value for Al will be more close to 575 or 760 kJ mol

^{- 1}

? Justify your answer.

Q. the first ionization enthalpy

(Δ_{i} H)

values of the third period elements, Na, Mg and Si are respectively 496, 737 and 786 kJ mol

^{- 1}

. Predict whether the first

Δ_{i} H

value for Al will be more close to 575 or 760 kJ mol

^{- 1}

? Justify your answer.

Q. An element has successive ionization enthalpies as

1^{s t}

(940), 2080, 3090, 4140, 7030, 7870, 16000 and 19500 kJ

m o l^{- 1}

^. To which group of the periodic table does this element belong?

Join BYJU'S Learning Program

First ionization enthalpy of two elements X and Y are 500 kJ mol−1 and 375 kJ mol−1respectively. Comment about their relative positive in a group as well as in a period.

First ionization enthalpy of two elements X and Y are $500 k J m o l^{-} 1$ and $375 k J m o l^{-} 1$ respectively. Comment about their relative positive in a group as well as in a period.