Compounds and Bonding

The properties of the elements that make up a compound are usually very similar to the compound itself.

• True
• False

How many elements are represented in the compound: Na₂CO₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

How many atoms of Sodium are included in this example: 3Na₂CO₃

• 1

• 2

• 3

• 6

Tags

NGSS.MS-PS1-1

If an atom's charge becomes 2+ what does that indicate?

• It took 2 electrons

• It lost 2 electrons

• It is in Period 2

• Its atomic number is 2

If an atom gains electrons, it becomes

• Positive, because the atom has been added to

• Negative, because electrons have been added

• Same, because it's balanced

• Equal, because now it has electrons

Tags

NGSS.MS-PS1-2

When metals bond with non-metals they form what type of bonds

• covalent
• ionic
• metallic

• lewis

How do the following two elements bond together? Na and F     

• NaF
• NaF₃
• Na₃F
• Na₁F₂

Tags

NGSS.MS-PS1-1

How do the following two elements bond together?
Cr³⁺  O^2-         

• CrO
• Cr₃O₂
• Cr₂O₃
• CrO₃

Tags

NGSS.MS-PS1-1

How do the following two elements bond together? K and S

• KS
• K₈S
• K₆S₃
• K₂S

Tags

NGSS.MS-PS1-1

When a nonmetal gains electrons, it becomes this type of ion.

• Anion

• Cation