HW due 02/07 Theorist & Isotopes

Which atomic theorist developed the plum pudding model?

• John Dalton

• JJ Thomson

• Ernest Rutherford

• Niels Bohr

Which atomic theorist performed the gold foil experiment?

• James Chadwick

• Erwin Schrodinger

• JJ Thomson

• Ernest Rutherford

Responsible for discovering the electron.

• John Dalton

• JJ Thomson

• Neils Bohr

• Ernest Rutherford

• James Chadwick

Responsible for discovering the atomic nucleus.

• John Dalton

• JJ Thomson

• Neils Bohr

• Ernest Rutherford

• James Chadwick

This theorist's atomic model did not include subatomic particles.

• John Dalton

• JJ Thomson

• Neils Bohr

• Ernest Rutherford

• James Chadwick

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number

Tags

NGSS.MS-PS1-1

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Tags

NGSS.MS-PS1-1

In a correctly written symbol what would be located in the "A" position?

• number of neutrons
• atomic number
• number of electrons 
• mass number

Tags

NGSS.MS-PS1-1

What quantities vary between isotopes of an element?

• protons, electrons, and atomic mass
• protons, electrons, and atomic number
• neutrons and electrons
• neutrons and atomic mass

Tags

NGSS.HS-PS1-8