Atomic Structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

Subatomic particles with a positive charge

• neutrons
• atomic mass
• protons
• isotopes

Tags

NGSS.HS-PS1-8

Subatomic particles that are neutral in charge

• Neutrons
• Protons
• Nucleus 
• Electrons

Discovered the nucleus of the atom through the Gold Foil Experiment

• Rutherford
• Chadwick
• Thomson
• Dalton

Tags

NGSS.HS-PS1-8

Proposed the Modern Electron Cloud Model of the atom

• Schrodinger & Heisenberg
• Dalton
• Chadwick
• Rutherford

Tags

NGSS.MS-PS1-1

Discovered the electron within the atom

• Thomson
• Chadwick 
• Schrodinger & Heisenberg
• Dalton

Look at this picture of Argon off the periodic table. Which of the following is true for this element?

• 18 protons

• 40 protons

• 22 protons

• 21.9 protons

Tags

NGSS.MS-PS1-1

Which part of an atom is used to identify it?

• number of protons

• number of neutrons

• number of electrons

Tags

NGSS.MS-PS1-1

When you have two atoms with different masses, Carbon-12 and Carbon-13 for example, what type of atom do you have?

• Neutral atom

• Ion

• Isotope

Iodine-131

The -131 tells you the

• number of protons.

• atomic mass.

• charge of the atom.

Tags

NGSS.HS-PS1-8