100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Chemistry AQA Inorganic: Group 2 Metals £6.46   Add to cart
Quickly navigate to
Preview
  2.  
  3. AQA
  4.  
  5. A Level Chemistry
  6.  
  7. Unit 3.2.2 - Group 2, the alkaline earth metals

Summary

Summary Chemistry AQA Inorganic: Group 2 Metals
 9 views  0 purchase
  • Institution
  • AQA

This gives an indepth study on the group 2 metals from the periodic table which is tailored for the AQA chemistry inorganic specification. This involves what the examiners will be testing you on in the examinations and it gives you everything you need to know about the group 2 metals. This is unit ...

[Show more]

Preview 1 out of 3  pages

Document information

  • June 17, 2024
  • 3
  • 2023/2024
  • Summary

Subjects

Written for

All documents for this subject (24)

Seller

avatar-seller
aliyaibrahim

Content preview

AQA group 2, the alkaline earth metals
Allergy chemistry revision


Students should be able to:

-Explain the trends in atomic radius and first ionisation energy

-examine the melting point of the elements in terms of their structure
and bonding

-the reaction of the elements Mg-Ba with water

The use of magnesium int ht e extraction of titanium from TiCl 4

The relative solubility’s of the hydroxides of the elements Mg-Ba in
water.

Mg(OH)2 in medicine an of Ca(OH)2 in agriculture.

The use of CaO or CaCO3 to removes SO2 fro flue gasses

The relative solubilities of the sulphates if the elements Mg-Ba in water

BaSO4 is insoluble

The use of acidified BaCl2 solutions to test for sulphate ions.

The use of BaSO4 in medicine

Students should be able to explain why BaCl solution is used tot test
for sulphate ions and why it is acidified.



Atomic radius
Group 2 elements form +2 ions when they react.

Group 2 metals lose 2 electrons to from +2 ions. All group 2 metals have
electron configurations that end in s2. The atomic radius increases as you go
down the group 2.

Ionisation energy
1st ionisation energy deceases as we go down group 2

Extra shells added as you go down the group. There is more shielding as a result
hence weaker attraction between he nucleus and outer electrons. The outer
electrons are also further from the nucleus which weakens the attraction. Both of
these make it easier to remove the outer electrons and so less energy is needed
to remove the outer electrons, lower ionisation energy. Although there is an
increase in the number of protons in the number o protons as we go down the
group. However the shielding effect overrides an increase in positive charge.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

Quick and easy check-out

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

Focus on what matters

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 aliyaibrahim. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £6.46. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

77254 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£6.46
  • (0)
  Add to cart