Ionic vs Covalent Bonding Properties

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Questions and Answers

What type of bond is formed when two atoms share electrons?

Covalent bond

Why do ionic structures have high melting and boiling points?

It requires a lot of energy to break down the ionic lattice.

Why are covalent molecular substances poor conductors of electricity?

They have no free electrons to carry electric current.

What happens to metals in ionic bonding?

Metals lose electrons. Signup and view all the answers

Why are ionic structures brittle?

When layers of ions with the same charge line up, the lattice will break down. Signup and view all the answers

What type of ions do non-metals form in ionic bonding?

Non-metals gain electrons. Signup and view all the answers

Why does diamond have a very high melting point?

Diamond has a very high melting point because it has a strong 3d structure where every carbon atom is held in place by 4 covalent bonds, requiring a lot of energy to break down the structure. Signup and view all the answers

Why is diamond used as a cutting tool?

Diamond is used as a cutting tool because nothing naturally occurs that is harder than diamond. Signup and view all the answers

Why doesn't graphite conduct electricity?

Graphite doesn't conduct electricity because it has no free electrons to carry electricity. Signup and view all the answers

Why is graphite soft and slippery?

Graphite is soft and slippery because its layers are connected with weak forces that allow them to slide over each other easily. Signup and view all the answers

Explain why silica (Silicon dioxide) is like diamond.

Silica is like diamond because it forms a giant covalent structure where each silicon atom bonds with an oxygen atom, giving it similar properties to diamond. Signup and view all the answers

Describe the formation of positive ions and negative ions.

Positive ions, known as cations, are formed by losing electrons, while negative ions, known as anions, are formed by gaining electrons. Signup and view all the answers

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