Roe Unit 2 Review

Front

What is the correct formula for a compound formed from the ions K+ and N-3?

Back

K3N

Front

If an oxygen atom has 8 protons and 10 electrons, what is its charge?

Back

O2-

Front

How many valence electrons should Oxygen have in its Lewis dot model?

Back

6

Front

How are ionic bonds formed?

Back

Transfer of electrons

Front

Is this a correct dot diagram for oxygen (O)?

Back

False

Front

What is the charge of a potassium ion (K+)?

Back

+1

Front

What is the charge of a nitride ion (N-3)?

Back

-3

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how atoms bond with each other.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve transfer of electrons, while covalent bonds involve sharing of electrons.

Front

What is a Lewis dot structure?

Back

A diagram that shows the bonding between atoms and the lone pairs of electrons.