Unit Test — Unit test Answers

Which properties make a metal a good material to use for electrical wires?

Which property do metalloids share with nonmetals?

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

What trend does the reactivity of most nonmetals show in a periodic table, excluding the noble gases?

Who is known as the "father of modern chemistry” because he first organized all known elements into four different groups?

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

While looking at xenon (Xe) on the periodic table, a student needs to find an element with a smaller atomic mass in the same group. Where should the student look?

Which is a scientific claim?

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

This is how sodium appears in the periodic table.

What are positive effects of plastics?

Which determines the reactivity of an alkali metal?

The table below lists the properties of a metallic element.

Which serves as evidence for a scientific claim?

The idea that people behave in odd ways on a full moon is an example of

Scientists in a lab are working with two different samples of the element mercury. They know that the different samples are different isotopes.

Atom A and Atom B have the same number of protons, but they do not have the same number of neutrons.Which statement describes these atoms?

Scientists in a particular field strive for the same quality of work because they know their peers will be reviewing their scientific claims. What does this review process help ensure?

Which element is most likely to be shiny?

Which lists only metalloids?