Atom

Atoms are made up of three basic parts, which are -

• Protons, neutrons, electrons
• neutrinos, protons, neutrons
• quarks, protons, electrons
• electrons, neutrons, and quarks

The nucleus is made up of -

• neutrons and electrons
• protons and neutrons
• protons and electrons
• electrons and quarks

Tags

NGSS.HS-PS1-8

Where are the electrons found in an atom?

• In specific orbitals, like planets around the sun
• In a cloud around the nucleus
• in the nucleus
• in a blob of positive matter

We use a model to learn about the atom - Why?

• It is too small to be seen
• Atoms are rare and hard to find
• All atoms are dangerous to work with 
• All of the above

Tags

NGSS.HS-PS1-8

Which scientist saw the atom as a positively charged blob with negative particles inside, similar to a Chocolate Chip Cookie

• Thomson
• Dalton
• Bohr
• Rutherford

Which scientist explained that electrons were moving in fixed shells or orbits around the nucleus?

• Dalton
• Thomson
• Rutherford
• Bohr

Which scientist saw the atom as a solid sphere?

• Dalton
• Thomson
• Rutherford
• Bohr

Which scientist saw the atom as mostly empty space with electrons moving around the nucleus? He was the first to find the nucleus.

• Dalton
• Thomson
• Rutherford
• Bohr

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-8

Scientist of the model of the atom in which the individual atoms are tiny solids like marbles

• Dalton
• Thomson
• Rutherford
• Bohr

One of Dalton's conclusions of his atomic theory was that all atoms of the same element are - 

• Reactive
• different
• combined
• the same