Subatomic Particles - Electrons, Protons, Neutrons

What is matter?

• Anything that has mass and occupies space

• Anything that transfers energy

• Anything that moves through space

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

What is the main difference between John Dalton's and J.J. Thomson's models of an atom?

• John Dalton thought that atoms are divisible and J. J. Thomson determined that atoms are indivisible

• John Dalton thought that atoms are indivisible and J. J. Thomson determined that atoms are divisible after he discovered electrons

• Both, Dalton and J.J. Thomson proposed that atoms are indivisible particles.

What does it mean - subatomic particles?

• Particles that cannot be divided further

• Particles that are smaller than an atom and make up an atom

• Particles that are bigger than an atom and contain an atom in them

• Particles that are the same size as an atom

Tags

NGSS.HS-PS1-8

Choose 3 main subatomic particles of an atom from the list below.

• Nucleus

• Electron

• Element

• Proton

• Neutron

Tags

NGSS.MS-PS1-1

What is an electron?

• It is a positively charged subatomic particle

• It is a negatively charged subatomic particle

• It is a neutral (no electrical charge) subatomic particle

What is a proton?

• It is a positively charged subatomic particle

• It is a negatively charged subatomic particle

• It is a neutral (no electrical charge) subatomic particle

What is a neutron?

• It is a positively charged subatomic particle

• It is a negatively charged subatomic particle

• It is a neutral (no electrical charge) subatomic particle

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Who discovered the electron?

• English chemist - John Dalton

• English physicist - J.J. Thomson

• English physicist from New Zealand - Ernest Rutherford

• Greek philosopher - Democritus

What is the electrical charge of an electron?

• +1 (positive)

• 0 (neutral)

• -1 (negative)

What is the electrical charge of a proton?

• +1 (positive)

• 0 (neutral)

• -1 (negative)