Ionic and covalent bonding

When an atom loses an electron, it becomes a:

• positive ion
• negative ion
• neutral ion
• neutral atom

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT a property of ionic compounds?

• They have very high melting points
• They conduct electricity when in solution
• They have high boiling points
• They are insoluble in water

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When the atom shares an electron with an another atom
• When the two nucleus merge
• When the neutrons leave the nucleus

Tags

NGSS.HS-PS1-2

Where are the nonmetals located on the periodic table? 

• Blue
• Red
• Green

Tags

NGSS.HS-PS1-1

What is the correct formula for this molecule?

• NH
• N₃H
• NH₃
• NH₄

Tags

NGSS.MS-PS1-1

Ionic bonds exist between a metal with a non-metal.

• True
• False

Magnesium (Mg) and Oxygen (O) form an ________ bond.

• Ionic
• Covalent
• Metallic
• Nothing

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Calcium (Ca) and 2 chlorine (Cl) atoms make a covalent compound.

• True
• False

Tags

NGSS.MS-PS1-1

What usually forms the negative ion?

• nonmetals

• metal

• none

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT formed by a covalent bond?

• K₂S
• H₂O
• I₂
• CO₂

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2