Question

Can someone check my answers?
Who have the stronger attraction force between their outmost electrons and nucleus?
Na and Cs. (Na)
Na and S. (S)
I and CI. (CI)
V and Zn. (V)

One of these does Not have in order of increasing force of attraction on the outermost electron in atoms of that element. So which is it?
A.Ba 9 years ago

Answer 1

Forces of attraction are stronger around the smaller molecule. I used to think of it like Legos. Your big Legos are easy to pull apart, but the smaller Legos are harder to separate.

Answer 2

Your first problem looks good. However, your second problem would be implying that F has the least attractive forces.

Answer 3

thank u so much. I like your lego help. Chemistry is not my best subject. I think you just help me me. It just the last problem just got me confused. I think its asking for the increase force. Can you explain that to me. Please

Answer 4

Yes I'd be glad to help. So for this second problem, we need to be looking at the masses of the elements.

Here's a link to the periodic table that I use: http://web.gccaz.edu/~lisys52871/periodictable.pdf

The size of the atom is proportional to it's atomic mass. The smaller the atomic mass of the element (number below the element's abbreviation), the greater the attractive forces will be. This is the same as the Lego analogy from above. With this in mind, find the atomic masses of each of the elements and find which one is going from least to greatest.

Answer 5

Okay atomic masses is just the sum of its isotopes then multiple by its natural number right

Answer 6

Not entirely, its the weighted average of all the element's isotopes.

Answer 7

So the element Ba (56 times 8) right

Answer 8

Oh, you're looking at the atomic number of the elements. The atomic MASS is the number below.

Answer 9

Lets say you had 8 Ba atoms in a molecule. Thats when you would do 137.77 * 8.

Answer 10

Wait, I think she's right, the question is asking for the one that's NOT in order of increasing force, so that would be (c) wouldn't it?

Answer 11

Oh i think i get it well im starting to get it :)

Answer 12

Ah, yes you're right. I must've not read the question right. Good catch, sorry about that!

Answer 13

@SapphireMoon ^

Answer 14

yw :) It was an excellent explanation you were doing, however, I'd rather like to watch you continue. ;)

Answer 15

Oh no you fine thanks for helping me

Answer 16

@SapphireMoon Thank you! :) I'm usually not very good at explaining stuff lol

Answer 17

@flowerslaws Is there anything else I could help with? does everything seem clear enough?

Answer 18

I have others question too.
So im suppose to put the protons and electrons from weak to strong
Set 1 have 3 protons and 1 electrons
Set 2 have 2 protons and 1 electrons
Set 3 have 2 protons and 1 electrons
My answers is set 1 then set 2 then set 3

Well im suppose to put the set in weak to strong

Answer 19

Would you mind making these into a separate post? It'll be easier to find for others with the same question.

Answer 20

Yea if i know how to :) this is my first day here

Answer 21

You just close this question (top left by the button that says "bump") and start typing a new one :)

Answer 22

Okay so do i type the set question for the new question

Answer 23

Now that you've closed the question, just put this:
So im suppose to put the protons and electrons from weak to strong
Set 1 have 3 protons and 1 electrons
Set 2 have 2 protons and 1 electrons
Set 3 have 2 protons and 1 electrons
My answers is set 1 then set 2 then set 3

Well im suppose to put the set in weak to strong

or whatever your new question is in the "Ask a question..." box and click post and you're good to go!