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- 1. Multiple Choice
What is the biggest difference between an atom of cobalt (Co) and an atom of nickel (Ni) as shown in the periodic table entries?
An atom of nickel has more protons.An atom of cobalt has more electrons.
An atom of cobalt has a lower number of neutrons.
An atom of nickel has a higher value for atomic mass. - 2. Multiple ChoiceCharles needs a very lightweight metal. Use the periodic table to determine which he would choose.siliconmagnesiumiondinetungsten
- 3. Multiple ChoiceIn what order are the regions arranged on the periodic table, reading left to right?inert gases, metals, nonmetals, metalloidsmetalloids, metals, nonmetals, inert gasesmetals, metalloids, nonmetals, inert gasesnonmetals, inert gases, metals, metalloids
- 4. Multiple ChoiceFluorine, chlorine, bromine, iodine, and astatine make up Group 17, the halogens. Why are these elements grouped together?They are all very reactive nonmetals with similar chemical properties.They are all nonreactive gases with similar physical properties.Their atoms all have eight electrons in their outer energy levels.They all have the same atomic number.
- 5. Multiple ChoiceWhich of the following best describes the properties of metals?hard, brittle, and nonconductiveliquid, dark, and conductive
shiny, malleable, and conductivesoft, oily, and very reactive - 6. Multiple ChoiceHow are the elements in the periodic table arranged?by their atomic massby their chemical symbolby their chemical nameby their atomic number
- 7. Multiple ChoiceThe graph above shows the densities in kilograms per cubic meter (kg/m3) of the elements in Period 2 of the periodic table. Given a 100m3 sample of each element in Period 2, which sample would have the greatest mass?the sample of Aluminum (Al)the sample of Chlorine (Cl)the sample of Sulphur (S)
the sample of Argon (Ar) - 8. Multiple ChoiceWhat does the number of electrons in the outer level indicate about the element?how reactive the element ishow malleable the element ishow brittle the element is
how ductile the element is - 9. Multiple ChoiceAccording to its location on the periodic table, sodium (Na) can be described asan alkaline-earth metal.a transition metal.
an alkali metal.
a metalloid. - Answer choicesTagsAnswer choicesTags