Ionic Bonds

Part A

Atoms with the same number of protons but with different electrical charges _____.

	have different numbers of neutrons
	have different atomic masses
	are different isotopes
	are different ions
	have different atomic numbers

Correct

Ions are charged atoms.

Part B

In salt, what is the nature of the bond between sodium and chlorine?

Correct

Sodium and chlorine ions are attracted to each other.

Part C

What is the result of the animated process?

To view the animation, click here. Then click on the image to start the animation.

	covalent bond formation
	a positively charged sodium ion and a positively charged chlorine ion
	a negatively charged sodium ion and a negatively charged chlorine ion
	a positively charged sodium ion and a negatively charged chlorine ion
	a negatively charged sodium ion and a positively charged chlorine ion

Correct

Sodium loses an electron and thus becomes positively charged; chlorine gains an electron and thus becomes negatively charged.

Part D

An ionic bond involves _____.

	an attraction between ions of opposite charge
	water avoidance
	the sharing of a single pair of electrons
	no atoms other than sodium and chlorine
	the unequal sharing of an electron pair

Correct

This is the definition of an ionic bond.

Think!