3.2 Defining th atom

What is the smallest particle of Matter that retains the properties of the element called

• atom

• Neutron

• Electron

• Nucleus

What tool was used to determine the charge of an electron

• Plum Pudding

• Silver Pellets

• Gold foil

• Cathode- Ray tube

Which of the following is incorrect

• Atoms are divisible into smaller subatomic particles

• Almost all of an atoms mass is contains in a tiny dense region in the center of the atom

• Rutherford concluded that the plum pudding model was correct

• Rutherford concluded that the Nucleus contains positively charged particle called proton

Tags

NGSS.HS-PS1-8

Which of the following is correct about the atom

• its dense Nucleus is negatively charged

• its nucleus is composed of neutrons and electrons

• it is made up of two subatomic particles

• it is spherical

Tags

NGSS.MS-PS1-1