[KatyCatForever]

So, I have this task for homework and I'm not sure how to solve it cause our teacher hasn't explained it to us.

First 8 Ei of one element are 1)10.49 ,2)19.72,3) 30.18, 4) 51.37
5) 65.02, 6) 220.43, 7) 263.21 , 309.41
Make a chart and
a) indentify where is the jump
b) indentify a group which tis element belongs to
c) indentify which element it is


please please help me solve this,I need to hand in that tomorrow

[mikasaur]

Hello and welcome to the forum KatyCatForever!

Before we can help you must show your attempts at solving this problem. That's one of the forum rules you can read about here.

Do you know what Ei (IE) is? Do you know how you might use software like Excel or some other tool to make a chart?

EDIT: Clarity

[KatyCatForever]

I'm sorry I haven't read forum rules before
I was thinking about ionisation energy When I wrote Ei
Furthermore, I don't need to make a Chart in Excel

I would be very grateful od someone could answer mi question

[mikasaur]

Please read the forum rules. They exist to help you get help.

You can certainly make the chart by hand. Let's assume you've made your chart and we can break this problem up into the pieces we have. Start with a) and identify where the jump is. Between which two values do you see a "jump"?

Hint: Carefully creating your chart with graphing paper will make the "jump" pop out at you.

Edit: Also, please include units in your question and chart. What is it 10.49 of? Joules, eV, kW hours, ponies?

[KatyCatForever]

First 8 EI of element x are 1)10.49 kJ/mol  2)19.72 kJ/mol
3) 30.18 kJ/mol 4) 51.37 kJ/mol
5) 65.02 kJ/mol 6) 220.43 kJ/mol  7) 263.21 kJ/mol 309.41 kJ/mol
Make a chart and
a) indentify where is the jump- I made a chart and I think that jump can be seen between  fifth and sixth ionisation energy
b) indentify a group which element x belongs to
c) indentify which element it is

I tryed to correct everything you pointed out, if there is anything else I need to correct feel free to say. Overall, I really need help.
I am sorry if in na text is anything gramatically incorrect because I'm not from an english-speaking country

[KatyCatForever]

Also I have tried to find a solution by myself, but neither in our school books or internet literature in my language describes the process of solving a task like this

[mikasaur]

Don't worry about your English. It's very good.

You see that there's a jump between the fifth and sixth ionization energy. I'd agree with that.

Why would there be a big jump in IE? One thing to think about is what IE actually means. Do you know what it means for the first ionization energy of an element to be 10.49 kJ/mol? How about the fifth IE? The sixth?

[KatyCatForever]

Ionisation energy is energy needed so electrone can be removed from atom  (if I translated it well)
I think that jump indicates For example in this task it can be seen between fifth and sixth IE  so five electrons can be easily removed out of atom and therefore an element x belongs to group 5 right?
Or maybe 15?

[Corribus]

First, you should always specify your units.

You have correctly deduced that the element probably belongs to group 15, which starts at nitrogen and works its way down. This should sufficiently help you narrow it down by consulting a table of ionization energies, such the one found here:

https://en.wikipedia.org/wiki/Ionization_energies_of_the_elements_(data_page)

[KatyCatForever]

But I must not use the table of IE to find out which element it is
I assumed that it is 15 group because only elements from that group have 5 electrones in last shell but in some literature I found some different statements

So my question is do I look for group by
"Number of IE that happened before jump is the same as the number of electrons in last shell"
Or
"Number of IE that happened before jump says what group element is in"

[mikasaur]

But I must not use the table of IE to find out which element it is
I assumed that it is 15 group because only elements from that group have 5 electrones in last shell but in some literature I found some different statements

So my question is do I look for group by
"Number of IE that happened before jump is the same as the number of electrons in last shell"
Or
"Number of IE that happened before jump says what group element is in"

The former, in this case.

I don't think it is possible to find the specific element without using a table of IE. I would also double check your units.