Chemistry A - Unit 2 - Ionic Compounds and Metals

What is the chemical formula for the chemical magnesium nitride? The chemical formula for magnesium nitride is Mg N.

3/2

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Mg (+2) O (-2)

What is the chemical formula of magnesium bromide?

MgBr2

Which characteristic is typical of metals?

They are malleable.

In metallic bonding, ( ) move freely between neighboring atoms. Metals are ductile because the forces that hold their atoms together are ( ).

electrons/independent of the arrangements of atoms

A metal atom loses electrons from its outermost energy level and acquires a ( ) charge. These electrons join a nonmetal atom. The ionic compound formed because of this transfer of electrons is electrically ( ).

positive/neutral

What is the chemical name of this compound? Na2S

sodium sulfide

Complete the paragraph about the formation of sodium phosphide. Electrons are transferred from atoms of ( ) to atoms of ( ). This transfer makes the sodium atoms ( ) and the phosphorus atoms ( ). As a result, the sodium and phosphorus atoms strongly ( ) each other.

sodium/phosphorous/positive/negative/attract

It is difficult to break the ionic bonds in a compound because of the ( ). Ionic compounds are solid at room temperature because they have ( ).

strong attraction between ions/high melting points

What makes metals, in particular, good conductors of electricity?

the ability of electrons to flow throughout the metal