Isotopes and Ions

An atom is considered an isotope if it has extra: 

• Protons
• Neutrons
• Electrons
• Orbitals

An atom is considered an ion if it has extra: 

• Protons
• Neutrons
• Electrons
• Orbitals

Tags

NGSS.HS-PS1-1

Valence electrons are: 

• Electrons located in the outermost orbital 
• Electrons located in the innermost orbital
• Electrons that are bonded to another atom
• Electrons that in the second orbital

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does an atom of carbon (6) have? 

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

An isotope has extra: 

• Protons
• Charge
• Mass
• Oribitals

Tags

NGSS.HS-PS1-8

An ion has extra: 

• Charge
• Valence Electrons
• Mass
• Orbitals

Carbon has an atomic number of 6. If an isotope of Carbon has a mass of 14, how many neutrons does it have? *Hint: Use subtraction

• 20
• 7
• 6
• 8

Tags

NGSS.MS-PS1-1

Helium has an atomic number of 2. If an isotope of Helium has a mass of 5 amu, how many neutrons does it have? *Hint: Use subtraction

• 3
• 7
• 2
• 4

Tags

NGSS.MS-PS1-1

Boron has an atomic number of 5. If an isotope of Boron has a mass of 11 amu, how many neutrons does it have? *Hint: Use subtraction

• 5
• 6
• 7
• 8

Tags

NGSS.MS-PS1-1

An ion of Chlorine gains one extra electron (-1). What is its new charge? 

• -1
• +1
• +2
• -2

Tags

NGSS.HS-PS1-1