Metalloids — Unit test Answers
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While looking at bromine (Br) on the periodic table, a student needs to find another element with very similar chemical properties but with a different atomic mass. Which best describes the student’s options?
A
There are two possible elements, and they are directly to the left and right of bromine.B
There are two possible elements, and they are directly above and below bromine.C
There are many possible elements, and they are all in the same vertical column as bromine.D
There are many possible elements, and they are all in the same horizontal row as bromine.42
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Which is a process that involves collecting information and ideas that are supported by belief or opinion?
A
scienceB
systematicsC
pseudoscienceD
hypothesis43
Who was the first chemist to organize elements by atomic number?
A
Johann Wolfgang DöbereinerB
Antoine LavoisierC
Henry MoseleyD
John Newlands44
This is how manganese appears in the periodic table.
A
period symbol of manganeseB
isotope symbol of manganeseC
group symbol of manganeseD
chemical symbol of manganeseDid you find these answers helpful?
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