Chemical Bonds Reading Comprehension

What is the force that holds substances together called?

How many electrons can the first energy level of an atom hold?

• Eight

• Two

• Six

• Four

What makes an atom more stable?

What are the two main types of chemical bonds?

• Covalent and ionic

• Metallic and covalent

• Ionic and metallic

• Hydrogen and ionic

What happens when sodium becomes a positively charged ion?

What is an ionic bond?

• A temporary interaction between atoms

• A magnetic attraction between two neutral atoms

• A sharing of electrons between two atoms

• An electrical attraction between two oppositely charged ions

How does a covalent bond form?

How do ions contribute to maintaining homeostasis and transmitting signals in living organisms?

How do atoms become more stable?

• By losing electrons

• By attracting electrons from other atoms

• By forming chemical bonds between atoms

• By gaining protons

What is the main factor involved in chemical bonding?

• Protons

• Neutrons

• Electrons

• Nucleus