Which of the following is NOT a step in forming an ionic bond?

• One atom shares its electrons with another one.
• Opposite charged ions form due to e- transfer
• One atom gives electrons to another one
• Opposite charged ions attract

Why do ionic bonds form?

• So the number of protons equals the number of electrons.
• To stabilize the atom with a full outer shell.
• So an atom can become unstable.
• So atoms will stick together to form molecules.

Tags

NGSS.HS-PS1-3

 Which of the following is the correct formula for these two ions:
Al⁺³ +  S^-2

• AlS₃
• Al₂S₃
• Al₃S₂
• Al₃S

Tags

NGSS.MS-PS1-1

What type of elements will form an ionic bond?

• Metals + Metals
• Nonmetals + Nonmetals
• Metals + Nonmetals
• None of the above

To form a charge of +2 an atom must _ electrons.  To form -3 it must _ electrons.

• Gain 2; Lose 3
• Gain 3; Lose 2
• Lose 2; Gain 3
• Lose 3; Gain 2

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What determines how ionic bonds will form?

• Number of protons
• Mass of the atom
• Number of total electrons
• Number of valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonds happen because of the ____ of valence electrons.

• sharing
• transfer

Which of the following would produce an anion?

• Ca
• Al
• K
• F

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is a characteristic property of ionic compounds?

• They form hard, brittle crystals with characteristic shapes
• They have low melting points
• They have low boiling points
• They contain no charged particles

Tags

NGSS.HS-PS1-3

In what form can an ionic compound conduct electricity?

• when dissolved in water
• as a solid
• as a crystal
• when warmed slightly