Chemistry chapter 3 (ions and Compounds)

What is a compound?

Atom of different element bonded together

What is a mixture?

It contains different substances that are not bonded together

Give a property of chemical change

Word equations

Energy is usually taken out during reaction

Usually difficult to reverse

One or more new substances has been created

Give a property of physical change

No new substances has been created

Easy to reverse

How many electrons does an atom need in its outer shell to be stable?

8

What is the the name of an charged atom?

Ion

Another name for positive charged ion?

Cations

Another name for a negatively charged ion

Anions

What is an ionic bond?

Electrostatic attraction between ions of opposite charge

What bond does metals and non-metals make?

Ionic bond

When does an ionic bond form?

When a metal loses electrons to non-metals

What charge does metal form when it reacts with a non metal?

Positive

What charge does a non-metal form when it reacts with a metal?

Negative

What do you put first when naming an ionic compound?

The positive ion

What is a compound ion?

A Ion made by a group of bonded atoms

What bond does non-metals make when they react with other non-metal

Covalent bond

What does mono mean?

One

What is an transition element?

Elements that can form more than one ion

Give properties of ionic compounds?

High melting and boiling point

Conducts electricity

Usually soluble in water

Name properties of covalent compounds

Low melting and boiling point

Insoluble in water

Does not conduct electricity

When does substances conduct electricity?

When it have charged particles

When naming a compound that contains metal + non metals what are the rules?

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Give name of metal first.

Add ide to the non metals end