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
Chapter 3 Chemistry £7.46
Add to cart
Quickly navigate to
Preview
  2.  
  3. Chapter 3 Chemistry
  4.  
  5. Chapter 3 Chemistry
  6.  
  7. Chapter 3 Chemistry

Exam (elaborations)

Chapter 3 Chemistry

 0 purchase

Chapter 3 Chemistry Atomic Theory The law of conservation of mass states that mass is neither created nor destroyed during ordinary chemical or physical reactions. The law of definite proportions holds that a chemical compound contains the same elements in exactly the same proportions by m...

[Show more]

Preview 1 out of 3  pages

Document information

  • July 10, 2024
  • 3
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

All documents for this subject (1)

Seller

avatar-seller
bestscores1

Content preview

Chapter 3 Chemistry
Atomic Theory



The law of conservation of mass states that mass is neither created nor destroyed during ordinary
chemical or physical reactions. The law of definite proportions holds that a chemical compound contains
the same elements in exactly the same proportions by mass, regardless of the size of the sample or
source of the compound. The law of multiple proportions states that if two or more different
compounds are composed of the same two elements, the ratio of the masses of the second element
combined with a certain mass of the first element is always a ratio of small whole numbers.



Atomic Structure



An atom is the smallest unit of an element that maintains its properties. The nucleus is held together by
nuclear forces, which are short-range forces that act between protons, neutrons, and protons. The
atomic mass unit (amu) is exactly 1/12 the mass of a carbon-12 atom. The atomic number is the number
of protons in the nucleus, and the average atomic mass is the weighted average of the atomic masses of
the naturally occurring isotopes of an element.



Isotopes and Nuclides



Isotopes are atoms of the same element that have different masses. The mass number is the total
number of protons and neutrons in the nucleus. A nuclide is a general term for any isotope of any
element.



Mole and Molar Mass



The mole is the SI unit for a substance, and it is defined as the amount of a substance that contains as
many particles as there are atoms in exactly 12g of carbon-12. The molar mass is the mass of one mole
of a substance, written in g/mol.



Dalton's Atomic Theory

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 bestscores1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £7.46. 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
£7.46
  • (0)
Add to cart
Added