Unit 3 Bonding Test

In order to form a full valence shell, what group of elements will atoms in group 1 most likely bond with?

• Alkaline earth metals

• Alkali metals

• Halogens

• Noble gases

Which ion has a charge of 2⁺?

• an ion with 10 protons, 10 neutrons, and 10 electrons

• an ion with 10 protons, 9 neutrons, and 8 electrons

• 
  an ion with 8 protons, 9 neutrons, and 10 electrons

• an ion with 8 protons, 10 neutrons, and 8 electrons

Due to the number of valence electrons, which type of atom would a Group 1 element bond with in a 1:1 ratio?

• oxygen

• argon

• 
  fluorine

• carbon

Why does the chloride ion have a -1 charge?

• Chlorine atoms gain an electron.

• Chlorine atoms lose an electron.

• Chlorine atoms share electrons.

• Chlorine atoms have no electrons.

Tyrone is making a circuit at home. The picture shows all the supplies he uses to create his circuit. He knows if he puts the electrodes into the deionized water, it will not conduct electricity and his circuit will not work. Which compound could Tyrone mix into with the water so that his circuit will work?

• NaCl (salt) because it is an ionic compound which will dissociate in water and make the water conduct electricity

• NaCl (salt) because it is a covalent compound which will dissociate in water and make the water conduct electricity

• C₆H₁₂O₆ (sugar) because it is an ionic compound which will dissociate in water and make the water conduct electricity

• C₆H₁₂O₆ (sugar) because it is a covalent compound which will dissociate in water and make the water conduct electricity

Which of the following compounds results from the formation of an ionic bond?

• H₂O

• 
  NO₂

• NaCl

• CO₂

When fluorine (F) forms chemical compounds with metals, the fluorine atom

• fuses electrons.

• loses electrons.

• shares electrons.

• 
  gains electrons.

​ Ionic compounds form when _______ and ______​ react.

• nonmetals; nonmetals

• halogens; metalloids

• metals; nonmetals

• metalloids; metals

What is the chemical bond that is formed when two atoms share one or more pairs of electrons?

• ionic bond

• orbital bond

• 
  polar bond

• 
  covalent bond

The table shows the melting points of various ionic and covalent compounds. Which best predicts whether water is an ionic compound or a covalent compound?

• Water is more likely an ionic compound because water has a low melting point.

• Water is more likely an ionic compound because water has a high melting point.

• Water is more likely a covalent compound because water has a low melting point.

• Water is more likely a covalent compound because water has a high melting point.