Which of the following scientists was one of the first to talk about the existence of atoms?

• John Dalton

• JJ Thomson

• Ernest Rutherford

• Democritus

What is the Greek word that means uncuttable, and is the root of the word used today to describe atoms?

• Teenies

• Atomos

• Indivisible

• Cathode

Which of the following statements is NOT part of Dalton's Atomic Theory?

• Atoms are indivisible

• Atoms of a given element are all different from one another

• Different atoms can combine to create compounds

• Chemical reactions occur when atoms are separated, joined together or rearranged

Which experiment helped scientists discover the existence of electrons?

• Aluminum Foil

• Gold Foil

• Anode Ray

• Cathode Ray

Which experiment helped scientists discover the existence of the nucleus?

• Aluminum Foil

• Gold Foil

• Anode Ray

• Cathode Ray

Atoms are made of mostly empty space.

• True

• False

Tags

NGSS.MS-PS1-1

Match the following model to its name.

• Plum Pudding Model

• 
• Bohr Model

• 
• Cloud of Probability

• 
• John Dalton's Atom

• 

Tags

NGSS.MS-PS1-1

Protons have a ​​​ (a)   charge and electrons have a ​ (b)   charge.

• neutral
• positive
• negative

Match the following parts of the atom to their function.

• Determines how an atom will react/bond

• Protons

• Identifies the atom and adds mass

• Neutrons

• Stabilizes the atom and adds mass

• Electrons

Place each part of the atom in its correct location.

a

b

c

Neutron

Proton

Electron

Tags

NGSS.MS-PS1-1