Atomic Theory of Matter

He developed the planetary model of the atom.

• Rutherford

• Bohr

• Chadwick

• Dalton

Tags

NGSS.MS-PS1-1

Who was the first person to ever talk about the atom?

• Dalton

• Rutherford

• Democritus

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NGSS.MS-PS1-1

Bohr's model of the atom proposed that ______.

• the nucleus spins

• neutrons move around the nucleus

• electrons move around the nucleus in levels

• neutrons do not exist, but are just paired protons and electrons

Tags

NGSS.MS-PS1-1

Whose model of an atom is displayed in this figure?

• Bohr

• Rutherford

• Thomson

• Dalton

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NGSS.MS-PS1-1

If you were to draw a diagram of what a gas particles looked like how would you draw them?

• All of the particle packed closely together

• All of the particles with a little space between them

• All of the particles with lots of space between each particle

• None of the options.

In an atom where would you find the neutrons?

• Electron cloud

• Neulcus

• Valance Shell

• Cell wall

What is represented by the image shown?

• Gas

• Solid

• Liquid

• None of the ones listed

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

What has to happen for one state of matter to change to another state of matter?

• Heat is added or reduced.

• Nothing, the states of matter cannot change.

• Particles are taken away from the system.

• Particles are added to the system.

Tags

NGSS.MS-PS1-4

In an atom there are positively charged particles, negatively charged particles and neutrally charged particles. What are the negatively charged particles called?

• Neutrons

• Protons

• Electrons

• Negatrons

If the mass number of an atom is 16. What would you add together in order to get the mass number of the atom.

• Number of protons and electrons

• Number of protons and neutrons

• Number of electrons and neutrons

• Number of electrons, protons and neutrons