Atomic Theory

What two elements are nanowhiskers usually made of?

• oxygen and nitrogen

• oxygen and carbon

• nitrogen and silver

• carbon and silver

Tags

NGSS.MS-PS1-1

What is the difference between a scientific law and a scientific theory?

• Nothing, they are the same thing.

• A law is something that can be proven and a theory is an educated guess

• A theory is something that can be proven and a law is an educated guess

• You can be arrested if you don't follow the law.

Who came up with the first atomic theory?

• Dalton

• Socrates

• Thomas

• Rutherford

What did Thomson's atomic theory model look like?

• A ring with gold foil in the middle.

• Electrons orbiting the nucleus like the planets around the sun.

• A cloud of electrons floating around the nucleus.

• A scoop of chocolate chip ice cream. It had electrons scattered within a ball of positive charge.

Tags

NGSS.MS-PS1-1

What did Bohr's atomic theory model look like?

• A ring with gold foil in the middle.

• Electrons orbiting the nucleus like the planets around the sun.

• A cloud of electrons floating around the nucleus.

• A scoop of chocolate chip ice cream. It had electrons scattered within a ball of positive charge.

Tags

NGSS.MS-PS1-1

The cloud model is what we use for the atomic theory now. What does the cloud model look like?

• A ring with gold foil in the middle.

• Electrons orbiting the nucleus like the planets around the sun.

• A cloud of electrons floating around the nucleus.

• A scoop of chocolate chip ice cream. It had electrons scattered within a ball of positive charge.

Tags

NGSS.MS-PS1-1

What did Rutherford discover about atoms?

• An atom is always negatively charged.

• An atom is mostly empty space, but has a dense positively charged center(nucleus).

• An atom is always positively charged.

• All particles will pass straight through gold foil with no change in path.

Tags

NGSS.HS-PS1-8

What is a positively charged particle?

• neutron

• electron

• proton

• atom

Tags

NGSS.MS-PS2-3

What is a negatively charged particle?

• neutron

• electron

• proton

• atom

Tags

NGSS.MS-PS2-3

What is a particle with no charge?

• neutron

• electron

• proton

• atom