Atoms

What is the smallest piece of matter that still has properties of that matter?

• element

• atom

• proton

Negatively charged particle

• proton

• neutron

• electron

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

Neutral charge particle

• proton

• neutron

• electron

Positively charge particle

• proton

• neutron

• electron

The central region of an atom where its neutrons and protons are is its 

• nucleus 
• electron cloud
• core 
• center 

Tags

NGSS.MS-PS1-1

An atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Tags

NGSS.MS-PS1-1

Most of the mass in an atom is concentrated in the...

• electrons
• nucleus
• protons
• empty space

What does the nucleus consist of?

• Protons + Electrons
• Neutrons + Electrons
• Atoms
• Protons + Neutrons

The part of the atom that is moving around the nucleus is called?

• electron
• neutron
• proton

Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

• Albert Einstein

Tags

NGSS.MS-PS1-1