Topic 4 - How Atoms Combine

Why are the noble gases very stable elements?

As they have a stable electron arrangement - 8 electrons in their outer shell
When atoms combine they are held together by
______?

bonds
Non - metal elements bond together by sharing electrons. What is a shared pair of electrons called?

A covalent bond
A molecule containing two atoms bonded together is called a ______ molecule?

diatomic
Name the seven diatomic molecules
- Hydrogen
- Oxygen
- Fluorine
- Nitrogen
- Chlorine
- Bromine
- Iodine
In an equation what are shown on the left?

the reactants
In an equation what are shown on the right?

the products

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Card Set

Topic 4 - How Atoms Combine

Description

Standard Grade Chemistry - Topic 4 - How Atoms Combine

Updated

2011-03-16T17:48:33Z

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