Atomic Structure Basics

Which particle makes up the ATOMIC NUMBER of an element?

• Protons

• Electrons

• Protons and Neutrons

• Neutrons

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 is an electron? 

• Positive

• Negative

• Neutral

• Positive or Negative 

Tags

NGSS.MS-PS2-3

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

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 an atom? 

• The smallest particle (electron)

• The smallest proton in a nulceus

• The largest particle outside the nucleus

• The basic unit of matter of an element

Tags

NGSS.MS-PS1-1

What is the atomic number of the atom pictured?

• 9

• 10

• 18

• 19

Tags

NGSS.MS-PS1-1

What charge does the nucleus have and why?

• positive - because of the protons inside

• positive - the neutrons and protons are positively charged particles

• negative - the neutral charge dominates the positive charge

• neutral - electrons cancel out the positive charge of the atom

Almost all of an atom's mass is found in its nucleus.

• True.

• False.

Tags

NGSS.HS-PS1-8

All atoms have mass and volume.

• True

• False

Tags

NGSS.MS-PS1-5