Answers Physical ScienceAtoms and the Periodic Table

Atoms and the Periodic Table — Test Answers

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Which lists only metalloids?

antimony Sb , tellurium Te , and gallium Ga

boron cap b , germanium Ge , and tellurium Te

polonium Po , aluminum Al , and silicon Si

arsenic As , sulfur cap s , and polonium Po

Which argument best explains the charge of an atomic nucleus?

An atomic nucleus is positively charged because it is composed of neutrons.

An atomic nucleus is negatively charged because it is composed of electrons.

An atomic nucleus is positively charged because it is composed of protons.

An atomic nucleus is negatively charged because it is composed of neutrons.

Which property do metalloids share with nonmetals?

Both are very conductive.

Both are brittle.

Both have low melting points.

Both are shiny.

Where on the periodic table would this element most likely be found?

Group 12

Group 13

Group 2

Group 1

Which statement describes each of the isotopes?

Isotope A was measured at day 24 , Isotope B was measured at day 8 , and Isotope C was measured at day 20 .

Isotope A was measured at day 30 , Isotope B was measured at day 6 , and Isotope C was measured at day 10 .

Isotope A was measured at day 18 , Isotope B was measured at day 4 , and Isotope C was measured at day 5 .

Isotope A was measured at day 24 , Isotope B was measured at day 6 , and Isotope C was measured at day 10 .

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