The order of decreasing ionization enthalpy in alkali metals is (a) Na > Li > K > Rb (b) Rb < Na < K < Li (c) Li > Na > K > Rb (d) K < Li < Na < Rb

Asked by Last Modified  

Follow 2
Answer

Please enter your answer

Chemistry Faculty for NEET and JEE with 10yrs of Experience.

Option:C, Ionisation enthalpy decreases down the group due to decrease in attraction of nucleus on valance electrons as down the group distance increases between nucleus and valence electrons.
Comments

Tutor

Ans is C...bec , while moving from top to bottom in the periodic table the ionic size increases so the amount of energy required to remove one electron from outer most shell decreases....hence the trend
Comments

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Mole concept
P

Pooja S.

0 0
0

Isotopes-1
1) What is an Isotope? Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. 2) What determines the atomic number of an element? A...

All about entropy
Entropy, the measure of a system’s thermal energy per unit temperaturethat is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a...

CONCEPT OF HYBRIDIZATION
Hybridisation is a hypothetical concept which explains about the formation and structure of molecules. Defination - the intermixing of atomic orbitals to produce symmetrical low energy containg hybrid...

Recommended Articles

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

While schools provide formal education to the children, the home is where they start learning about things informally. Parents think that schools will take the initiative to educate their children. Well, this is partially true, as parents also play an essential role in bringing up their child. For the development of particular...

Read full article >

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you