Ions and Ionic Bonding

Ionic bonds form between two ions that have...

• ionic compounds

• negative charges

• positive charges

• opposite charges

Why do ionic bonds form?

• so the number of protons equals the number of electrons

• to fill the outermost energy level to make the atom stable

• so an atom can become unstable

Which of the following could NOT form an ionic compound? Check all that apply.

• Li⁺ and Cl^-

• F^- and O^2-

• Ba²⁺ and Ag⁺

• Mg²⁺ and S^2-

Tags

NGSS.MS-PS1-5

What elements generally make an ionic bond ?

• Metal and nonmetal

• 2 or more nonmetals

• 2 or more metals

• 2 elements

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

An ionic bond forms when 

• Valence electrons are shared

• a sea of mobile electrons surround the cations

• valence electrons are transferred between atoms

• none of the above

Tags

NGSS.MS-PS1-5

Metals (like Na) typically _____ electrons in the formation of ionic bonds.

• Gain

• Lose

• Keep the same

Tags

NGSS.MS-PS1-5

Nonmetals (like Cl) typically ____ electrons when they form ionic bonds.

• Gain

• Lose

• Keep the same

We use the sign "+" next to the atom's symbol to show that the ion has a positive charge.

• true

• false

We use the "-" sign next to the atom's symbol to show that the ion has a negative charge.

• true

• false

Mg ionizes to a charge of ______.

• +1

• +2

• -1

• -2