TCI - UNIT 1 LESSON 1 - ATOMS & ELEMENTS

Which of the following is made up of particles of matter? (a baseball bat, a rubber tire, a human being, or all of the above)

• A BASEBALL BAT

• A RUBBER TIRE

• A HUMAN BEING

• ALL OF THE ABOVE

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NGSS.5-PS1-1

WHAT IS AN ELEMENT?

• AN INDIVIDUAL PARTICLE OF AN ELEMENT.

• A UNIQUE PARTICLE OF MATTER THAT IS FUNDAMENTAL BUILDING BLOCK OF MATTER.

What is NOT true of atoms?

• SOME ATOMS CAN BE SEEN WITH A MAGNIFYING GLASS.

• SOME ATOMS ARE SO LARGE YOU DO NOT NEED A MAGNIFYING TO SEE THEM.

SCIENTISTS USE THE ATOMIC SCALE TO MEASURE THE

• SIZE OF PROTONS

• SIZE OF ATOMS

What were some of Rohrer and Binnig's main criteria for developing a technique that would allow them to see atoms?

• They needed to measure and move individual atoms.

• They needed to touch atoms with their hands.

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What was a constraint faced by Rohrer and Binnig when making their new microscope?

• They couldn't find materials. They did not make their microscope.

• The available technology made it difficult to see something as small as an atom.

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NGSS.MS-ETS1-1

What did Rohrer and Binnig call their new microscope?

• MTV

• STM

Atomic mass is the mass of...

• many atoms

• a single atom

What is the unit of measurement scientists use for atomic mass?

• daltons (Da)

• amu

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NGSS.HS-PS1-7

What did John Newlands notice after arranging the elements in order of their atomic masses?

• Every eighth element shares similar characteristics.

• Every twelfth element shares similar characteristics.