Summary

Summary Unit 2 Topic 1 - Ionic Bonding

0 purchase

Module
Unit 2 - Bonding and Structure

Institution
PEARSON (PEARSON)

Study notes for Unit 2 Topic 1 - Ionic Bonding for Chemistry Edexcel A Level 2015. Focusing on what ionic bonding is, how this type of bonding is formed and why, the various factors affecting ionic bonding and the trends in ionic radii, and physical properties of ionic compounds.

[Show more]

Preview 1 out of 2 pages

View example

Uploaded on December 1, 2022
Number of pages 2
Written in 2020/2021
Type Summary

£5.49

Also available in package deal from £10.49

Add to cart

Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Also available in package deal (1)

Edexcel Chemistry A Level Unit 2 - Bonding and Structure (All Topics)

£ 38.43 £ 10.49 7 items

1. Summary - Unit 2 topic 7 - making predictions
2. Summary - Unit 2 topic 6 - solubility
3. Summary - Unit 2 topic 5 - intermolecular forces
4. Summary - Unit 2 topic 4 - electronegativity and polarisation
5. Summary - Unit 2 topic 3 - metallic bonding
6. Summary - Unit 2 topic 2 - covalent bonding
7. Summary - Unit 2 topic 1 - ionic bonding
Show more

Chemistry Notes Topic 2 - Ionic Bonding

Recap:
● When electrons are transferred, ions are formed.
● They can be positive cations or negative anions.
● Simplest ions are single atoms which have achieved a full outer shell.
● Elements will lose or gain electrons to get the full outer shell, and will
therefore form an ion with the same charge (e.g. Mg will lose 2
electrons and become Mg2+).

Ionic Bonding:
● This is the strong electrostatic attraction between oppositely charged
ions.
● The stronger the electrostatic attraction, the stronger the ionic bond.
● When oppositely charged ions form an ionic bond, you get an ionic
compound.
● The positive and negative charges balance exactly, so the total overall
charge of an ionic compound is zero.

Factors affecting ionic bonding:
1. Ionic Radius - smaller ions can pack more closely together than larger
ions, and since electrostatic attraction gets weaker with distance, small
and closely-packed ions have stronger ionic bonding than larger ions,
and will also have higher melting/boiling points.
2. Ionic Charge - the greater the charge on an ion, the stronger the ionic
bond and therefore the higher the melting/boiling point.

Trends in ionic radii:
1. Ionic radius - increases down a group, as extra electron shells are
added.
2. Isoelectronic ions - these are ions of different atoms with the same
number of electrons (e.g. O2- and Na+). The ionic radius of a set of
isoelectronic ions decreases as the atomic number increases. This is
because the electrons are more strongly attracted to the nucleus with
more protons, so they are pulled in a little.

Dot-and-cross diagrams:
● Show the arrangement of electrons in an atom or ion, and they can also
show where the electrons in a bond originally came from.
● Usually only the outer electrons are shown.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller einavd-l. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £5.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69252 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling