Unit Test — Unit test Answers

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Which lists only metalloids?

arsenic (As), sulfur (S), and polonium (Po)

antimony (Sb), tellurium (Te), and gallium (Ga)

boron (B), germanium (Ge), and tellurium (Te)

polonium (Po), aluminum (Al), and silicon (Si)

This is how sodium appears in the periodic table.

number of neutrons.

chemical symbol

atomic mass

combined number of electrons and protons.

Who described atoms as small spheres that could not be divided into anything smaller?

Bohr

Dalton

Rutherford

Thomson

Which lists the elements in order from most conductive to least conductive?

potassium (K), selenium (Se), germanium (Ge)

germanium (Ge), potassium (K), selenium (Se)

selenium (Se), germanium (Ge), potassium (K)

potassium (K), germanium (Ge), selenium (Se)

A blue circle labeled proton and A overlaps a pink circle labeled electron and C. The overlap is labeled B.

Is found in the nucleus

Has mass of 1 amu

Orbits the nucleus

Is electrically charged

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