MyQuestionIcon

1

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

Electronic Configuration of Actinides

The first fiv...

Question

The first five ionization energies of an element are 9.1, 16.2, 24.5, 35 and 205.7 eV respectively. The number of valence electrons in the atom is

A

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

4

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 4
As there is a large IE difference between $I E_{4}$ & $I E_{5}$ i.e. $I E_{5}$ value is extremely high comparatively. It is difficult to remove $5^{t h}$ electron from atom. So, it must have been in the penultimate shell. As a result, it has 4 valence electrons in the outermost shell. After the removal of 4 electrons the element attains noble gas configuration.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The first five ionization energies of an element are 9.1, 16.2, 24.5, 35 and 205.7 eV respectively. The number of valence electrons in the atom is

Q. The first, second, third and fourth ionization energy values of an element are

191, 578, 872,

5692

kcals. The number of valence electrons in the element are:

Q. The first four ionization energy values of an element are 120, 240, 520, and 6420 k cal. The number of valence electrons in the element is:

Q. First four ionization energy values of an element are 191, 578, 872 and 5972 Kcals. The number of valence electrons in the element is

Q. The first four ionisation energy of an element are

191, 578, 872

5962 k c a l

{m o l}^{- 1}

respectively. The number of valence electrons is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Actinoids

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Electronic Configuration of Actinides

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon