Discuss and compare the trend in ionization enthalpy of the elements of group 1 with those of group 17 elements.

Asked by Last Modified  

2 Answers

Learn Chemistry +1 Classification of Elements and Periodicity in Properties

Follow 1
Answer

Please enter your answer

Shivansh Bhardwaj

Physics lover ,Chess player , love to study physics all the time

Ionization enthalpy is the energy given to a electron to remove from its outer shell If we are removing first electron then it is . i1 AND if removing second one after first then i2. AND so on In case of first group elements only one electron is there in there outer shell and in...
read more
Ionization enthalpy is the energy given to a electron to remove from its outer shell If we are removing first electron then it is . i1 AND if removing second one after first then i2. AND so on In case of first group elements only one electron is there in there outer shell and in group 17 there are 7 electron and every atom wants to be stable by achieving noble gas configuration so , Removing a electron from group 1 element is easy because after losing 1 electron it becomes more stable so it requires lesser amount of energy to remove its outer electron infact very less or room temperature is enough But in tgecase of group 7 Elements removing of electron didn't make that atom stable so it requires more amount of energy to remove electron from it's outer shell i7>>>>>>>i1 read less
Comments
Dislike Bookmark

The ionization enthalpies decrease regularly as we move down a group from one element to the other. This is evident from the values of the first ionisation enthalpies of the elements of group 1 (alkali metals) and group 17 elements as given in table and figure. (i) On moving down the group, the atomic...
read more
The ionization enthalpies decrease regularly as we move down a group from one element to the other. This is evident from the values of the first ionisation enthalpies of the elements of group 1 (alkali metals) and group 17 elements as given in table and figure. (i) On moving down the group, the atomic size increases gradually due to the addition of one new principal energy shell at each succeeding element. Hence, the distance of the valence electrons from the nucleus increases. Consequently, the force of attraction by the nucleus for the valence electrons decreases and hence the ionisation enthalpy should decrease. (ii) With the addition of new shells, the shielding or the screening effect increases. As a result, the force of attraction of the nucleus for the valence electrons further decreases and hence the ionisation enthalpy should decrease. (iii) Nuclear charge increases with increase in atomic number. As a result, the force of attraction by the nucleus for the valence electrons should increase and accordingly the ionisation enthalpy should increase. The combined effect of the increase in the atomic size and the screening effect more than compensates the effect of the increased nuclear charges. Consequently, the valence electrons become less and less firmly held by the nuclear and hence the ionisation enthalpies gradually decrease as move down the group. read less
Comments
Dislike Bookmark

Related Questions

Which orbital is non-directional?
s orbital
Name
0 0
7
Explain why HC1 is a gas and HF is a liquid.
Fluorine is most electronegative due to this HF is more polar than HCl. Therefore HF is associated with intermolecular H Bonding and liquid at room temperature.
Dr. rajani
Define the following:
(i) First law of thermodynamics.
(ii) Standard enthalpy of formation.
The First Law of Thermodynamics It specifies that energy is recollected. According to it, the energy is never made nor extinguished but it can be altered. The quantity of energy lost by a system will...
Ashwini
0 0
5
Which of the following is not a peroxide?
(a) KO2(b) CrO5(c) Na2O2 (d) BaO2
Correct answer is option (c). Because A peroxide is a compound containing oxygen oxygen single bond. The way you can identify it when it is in a compound is by using the valence electron of the partner...
Tripti
0 0
5
Should I join a coaching institute in the 11th class or do self-study?
There two factors in this: 1. Why do you think you should join coaching? Let me reframe- Do you think you need coaching? What do you intend to achieve form it? 2. What are your subjects? If you are studying...
Gene
0 0
8

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

Ask a Question

Related Lessons

The Balancing Act of Chemical Systems

Sakshi S.

1 0
0
Basics of Mole concept
What is Mole? If we talk of quantity a Dozen then it is 12 Pair= 2 Dozen and pair both are quantities without having unit,similiarly Mole is quantity which is equal to 6.023x1023. Now imagine hypothetically...

Ankit Saxena

0 0
0
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...

Subrat Majhi

1 0
0
Why hydrated copper sulphate blue in colour
Hydrated copper sulphate is blue in colour due to the presence of water in it. Without the presence of water, it has a white colour.CuSO4.2H2O, hydrated copper sulphate.
V

Vaishali R.

1 0
0
Do you know why water boils at higher temperature when solute is mixed into it Why your Red blood cells lose nuclei but not that of camel
M

Meena S.

0 0
0

Recommended Articles

How To Choose The Right School For Children?

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

The Trend of E-learning and it’s Benefits

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 >

6 Healthy Habits of School Children

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 >

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

Find Class XI Tuition near you
Class XI Tuition in Delhi
Class XI Tuition in Bangalore
Class XI Tuition in Kolkata
Class XI Tuition in Hyderabad
Class XI Tuition in Mumbai
Class XI Tuition in Chennai
Class XI Tuition in Pune
Class XI Tuition in Gurgaon
Class XI Tuition in Noida
Class XI Tuition in Ghaziabad

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