atoms

What is an atom?

• The smallest unit of matter

• The smallest unit of measurement

• Your next door neighbor

Tags

NGSS.MS-PS1-1

Which part of the atom has a positive charge?

• Proton

• Neutron

• Electron

Tags

NGSS.MS-PS1-1

Which part of the atom has a negative charge?

• Proton

• Neutron

• Electron

Tags

NGSS.MS-PS1-1

Which part of the atom has a neutral charge?

• Proton

• Electron

• Neutron

Tags

NGSS.MS-PS1-1

What is the center of the atom called?

• Orbital

• Ring

• Nucleus

What are atoms made up of?

• Protons, neutrons, electrons

• Protons, nucleus, electrons

• Proteins, neutrons, electrons

Tags

NGSS.MS-PS1-1

Which particles are found in the nucleus?

• Electrons and protons

• Electrons and neutrons

• Protons and neutrons

True or False: The number of protons and neutrons are always the same

• False

• True

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

Who discovered that the atom had an small, dense, positively charged center?

• Ernest Rutherford

• J.J Thomson

• Robert Millikan

• John Dalton