Fall Final Review Part 2 - Gen Chem

What is a positive ion called?

• anion

• cation

• isotope

• covalent

How many electrons would a Nitrogen ion gain/lose? If it has 5 valence electrons.

• lose 5

• gain 5

• lose 3

• gain 3

If an element has 3 valence electrons, what charge will likely form on its ion ?  Hint:  It will lose those electrons.  What happens to the charge when it loses 3 electrons?

• +3
• +5
• -3
• -5

Ionic bonds form between two ions that have 

• ionic compounds
• negative charges
• positive charges
• opposite charges 

Atoms that gain & lose electrons are called _________

• ions
• isotopes
• radioactive
• corrosive

What is the charge of an atom that has lost one electron?

• -1
• -2
• +1
• +2

Isotopes of an element have a different number of...

• Protons

• Neutrons

• Electrons

• Mass

How many neutrons does an atom of the isotope Neon-22 have?

• 12
• 10
• 22
• 20

How many neutrons does a Sodium 24 isotope have?

• 12
• 13
• 14
• 15

Which conversion factor should be used for the following question " How many molecules are there in 4.00 moles of glucose, C₆H₁₂O₆? 

• 1 mole = 78.12 g
• 1 mole = 22.4 L 
• 1 mol = 6.02x 10²³ particles 
• more than one