Atomic Structure Basics

What is the nucleus? 

• The center (middle) of the atom
• The outside electron cloud
• The area inside the electron charge
• The positive or negative charge of the atom 

Tags

NGSS.MS-PS1-1

What two sub-atomic particles are inside the nucleus of the atom? 

• Protons and Electrons
• Electrons and Neutrons
• Protons and Nucleus 
• Protons and Neutrons 

Tags

NGSS.MS-PS1-1

Which sub-atomic particle is OUTSIDE the nucleus of the atom? 

• Electron
• Neutron
• Proton
• Nucleus 

Tags

NGSS.MS-PS1-1

Which sub-atomic particle has the smallest mass?

• Electron

• Neutron

• Proton

• Nucleus

Tags

NGSS.MS-PS1-1

What does the term "sub-atomic" mean? 

• A substance "inside or within" the atom
• A substance "outside" the atom 
• A substance "eaten by" the atom
• A substance "larger than" the atom

Tags

NGSS.MS-PS1-1

What charge on an electron?

• Positive

• Negative

• Neutral

• Positive or Negative

Tags

NGSS.HS-PS2-4

What is the neutron? 

• A negatively charged particle outside the nucleus 
• A positively charged particle inside the nucleus 
• A particle without a charge inside the nucleus 
• A positively charged particle outside the nucleus 

Tags

NGSS.MS-PS1-1

What is the proton? 

• A negatively charged particle outside the nucleus 
• A positively charged particle inside the nucleus 
• A particle without a charge inside the nucleus 
• A positively charged particle outside the nucleus 

Tags

NGSS.MS-PS1-1

What is the electron? 

• A negatively charged particle outside the nucleus 
• A positively charged particle inside the nucleus 
• A particle without a charge inside the nucleus 
• A positively charged particle outside the nucleus 

Tags

NGSS.MS-PS1-1

An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.

• 20
• 10
• 5
• 25

Tags

NGSS.MS-PS1-1