Atomic Structure Review

When positively charged alpha particles were scattered by a thin gold foil, he found that The nucleus is very small and the atom is mostly empty space.

• Rutherford

• Bohr

• JJ Thompson

• Louis de Broglie and Werner Heisenberg

• Dalton

Electrons absorb energy and therefore their positions change in their orbit. The orbit is made with probabilities within an electron cloud.

• Rutherford

• Bohr

• JJ Thompson

• Louis de Broglie and Werner Heisenberg

• Dalton

Tags

NGSS.MS-PS3-5

All elements are composed of indivisible particles called atoms

• Rutherford

• Bohr

• JJ Thompson

• Louis de Broglie and Werner Heisenberg

• Dalton

Tags

NGSS.MS-PS1-1

Electrons orbit the nucleus. Like planets orbiting the sun. With each orbit are only able to contain a set number of electrons.

• Rutherford

• Bohr

• JJ Thompson

• Louis de Broglie and Werner Heisenberg

• Dalton

Developed the idea that an atom was made up of electrons scattered unevenly within a positive sphere

• Rutherford

• Bohr

• JJ Thompson

• Louis de Broglie and Werner Heisenberg

• Dalton

Which of the following statements about the atom did Rutherford’s experiment support?

• An atom contains protons, neutrons, and electrons

• An atom’s nucleus is small and has a positive charge

• Electrons follow a predictable path around the nucleus

• Different isotopes of an element have different masses

Tags

NGSS.HS-PS1-8

How many protons does oxygen have?

• 16

• 8

• 6

• 15

What is the mass number for oxygen?

• 16

• 8

• 32

• 6

What element has 19 protons?

• Copper

• Potassium

• Florine

• Argon

If the protons is 19 what else is 19?

• atomic number

• mass number

• neutrons