Atoms & Bohr Models

___________________ are the basic building-block of all matter.

• protons

• masses

• volume

• atoms

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Which one is the smallest?

• a rabbit

• a bacteria

• an atom

• a proton

Tags

NGSS.MS-PS1-1

Which one is the smallest?

• a proton

• a neutron

• an atom

• an electron

It would take about _________________________ protons or neutrons put side-by-side to equal a centimeter.

• One million

• One hundred million

• One hundred billion

• One hundred trillion

Proton has a _______________ charge.

Electron has a _______________ charge.

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NGSS.MS-PS2-3

Neutron has ______________ charge.

Protons and neutrons are located

• In the nucleus of the atom

• Outside the nucleus of the atom

• In the cell nucleus

• Outside of the atom

Tags

NGSS.MS-PS1-1

Which element has 3 protons?

• Hydrogen

• Helium

• Lithium

• Carbon

Tags

NGSS.MS-PS1-1

Who developed the Bohr model of the atoms?

• Marie Curie

• John Dalton

• Niels Bohr

• Dmitri Mendeleev