Unit 2 Learning Outcome A: Chemical reactivity and bonding
Institution
PEARSON (PEARSON)
Unit 2 Chemical reactivity and bonding BTEC Applied science level 2
In this assignment, you will:
• Describe the physical and chemical properties of group 1 and 7 elements.
• Describe trends in the physical and chemical properties of group 1 and 7 elements.
• Explain the trends in chemi...
Unit 2 Learning Outcome A: Chemical reactivity and bonding
All documents for this subject (1)
1
review
By: euanmackiegcfc • 2 year ago
Seller
Follow
zhedar
Reviews received
Content preview
Unit 2 Assignment Booklet
Learning Outcome A:
Chemical reactivity and bonding
In this assignment, you will:
Describe the physical and chemical properties of group 1 and 7 elements.
Describe trends in the physical and chemical properties of group 1 and 7
elements.
Explain the trends in chemical properties of group 1 and 7 elements in terms of
electronic structure.
Compare properties of ionic and covalent substances.
Draw dot-and-cross diagrams of simple ionic and covalent substances.
Explain the properties of ionic and covalent substances.
Describe the formation of ionic and covalent substances.
Relate applications of compounds to their properties and to their bonding and
structure.
Name:
Group:
Tutor:
1
, Alkali Metals
Physical Properties
Complete the table below with the required information.
Name of Appearance Electrical Thermal Solubility Melting Boiling
Alkali conductivity conductivity in oil point point
Metal
Lithium Its soft and Good Good insoluble 180.5 °C 1,330 °C
silver and
whiteish
colour.
Sodium It’s a soft Good Good insoluble 97.79 °C 882.8 °C
bright silver
and whiteish
colour.
Potassiu Shiny silvery Good Good insoluble 63.5 °C 758.8 °C
m white
Rubidium A metallic Good ok insoluble 39.3 °C 688 °C
silver
Caesium A shiny Good ok insoluble 28.44 °C 670.8 °C
silvery
goldish
colour
Based on the table above, discuss any similarities and differences on the trends.
All the alkali metals have the same appearance as each other or close to the same
colour. They are all also contained in oil because they don’t dissolve or react to oil.
The melting and boiling point of these alkali metals get lower at you go down the
table, lithium’s melting point is 180.5°c and caesium’s melting point is 28.44°c.
Their Electrical conductivity and Thermal conductivity have are quite similar all the
alkali metals are a good conductor of electricity. Lithium, Sodium and Potassium are
also a good conductor of thermal while rubidium and caesium are ok.
2
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 or Stuvia-credit 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 zhedar. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.91. You're not tied to anything after your purchase.
