What type of bond is formed when one atom donates an electron to another atom?

• Covalent bond

• Metallic bond

• Ionic bond

• Hydrogen bond

Which of the following is a characteristic of ionic compounds?

• Low melting points

• Electrical conductivity in solid form

• High solubility in water

• None of the above

Ionic bonds are formed between metals and nonmetals.

• True

• False

When sodium (Na) forms an ionic bond with chlorine (Cl), what happens to the electrons?

• Sodium gains an electron, and chlorine loses an electron.

• Sodium loses an electron, and chlorine gains an electron.

• Both sodium and chlorine share electrons.

• Both sodium and chlorine gain electrons.

Tags

NGSS.HS-PS1-2

Which of the following compounds contains ionic bonds?

• H₂O

• NaCl

• CO₂

• N₂

Tags

NGSS.HS-PS1-3

In metallic bonding, how are the electrons described?

• Shared equally between atoms

• Free to move throughout the metal

• Transferred from one atom to another

• Restricted to the outermost shell

Metallic bonds occur between two nonmetal atoms.

• True

• False

What is the most likely property of metals due to metallic bonding?

• Poor conductivity

• Brittle and hard

• Malleable and ductile

• Low melting point

Why do metals typically conduct electricity?

• Because of the presence of free-moving electrons in the metal structure

• Because of the sharing of electrons between atoms

• Because they are made of charged ions

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-5

Which of the following is an example of a metallic bond?

• NaCl

• H₂O

• Cu (copper)

• CH₄