Coordinate Covalent Bonds and Metallic Bonds

Ammonium ion (NH₄⁺) is an example for

• Covalent compound

• Coordinate compound

• Ionic compound

• Metallic compound

Which type of chemical bond is formed in Aluminum wire?

• Metallic

• Ionic

• Covalent

• Dative

What is the basis of a metallic bond?

• The attraction of neutral metal atoms.

• The attraction between positive metal ions and interlocking electrons.

• The attraction between protons and neutrons.

• The attraction between positive metal ions and free floating electrons.

Why do metals conduct electricity?

• They are shiny

• The electrons are delocalised and able to move

• The electrons are held tightly within the lattice

• The electrons are shared between two metal ions

Tags

NGSS.HS-PS2-5

What type of bond is illustrated above?

• Metallic
• Ionic
• Covalent
• Wiggly

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How can coordinate covalent bond form between ammonia, NH₃ and hydrogen ion, H⁺ to form ammonium ion, NH₄⁺?

• Ammonia, NH₃ and hydrogen ion, H⁺ will each share one electron

• The pair of electrons not involved in covalent bond in ammonia, NH₃ will be shared with hydrogen ion, H⁺

• Ammonia, NH₃ and hydrogen ion, H⁺ will each share one electron

How can coordinate covalent bond form in hydroxonium ion H₃O⁺?

• The pair of electrons not involved in covalent bond in water molecule, H₂O will be shared with hydrogen ion H⁺

• Water molecule, H₂O and hydrogen ion, H⁺ will each share one electron

• Water molecule, H₂O and hydrogen ion, H⁺ will each share two electrons

Which of these statements best describes a coordinate covalent bond?

• A pair of electrons shared between two atoms where each atom has donated one electron.

• A pair of electrons shared between two atoms where one atom has donated two electrons.

• Two pairs of electrons shared between two atoms where each atom has donated one electron.

• Two pairs of electrons shared between two atoms where each atom has donated two electrons.

Why do metals have high melting points?

• They don't

• All the electrons become delocalised

• The negatively charged electrons act as a glue to hold the positively charged ions together.

Name the type of bond formed in ammonium ion.

• Covalent bond

• Coordinate Covalent bond

• Hydrogen bond

• Metallic bond