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Constructed Response . Topic 2: The Periodic Table




Set F: Properties of Groups, Phases at STP, conductivity, atomic size comparison

Base your answer to questions 16 through 19 on the information below.

A metal, M, was obtained from compound in a rock sample. Experiments
have determined that the element is a member of Group 2 on the
Periodic Table of the Elements.
Write answers here.

16. What is the phase of element M at STP. 16.



17. Explain, in terms of electrons, why element M is 17.

a good conductor of electricity.
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18. Explain why the radius of a positive ion of element 18.

M is smaller than the radius of an atom of element M.




19. Using the element symbol M for the element, write 19.

the chemical formula for the compound that forms

when element M reacts with Iodine?




Set G: Graphing, data interpretation, electronegativity trend

The table below shows the electronegativity of selected elements of the Periodic Table.


Element Atomic Number Electronegativity


Beryllium 4 1.6

Boron 5 2.0
Carbon 6 2.6
Electronegativity Fluorine 9 4.0

Lithium 3 1.0
Oxygen 8 3.4


Atomic Number

20. On the grid, set up a scale for electronegativity on the y-axis.

Plot the data by drawing a best-fit line. Write answers here.



21. Using the graph, predict the electronegativity of Nitrogen. 21. __________


22. For these elements, state the trend in electronegativity in 22.

terms of atomic number.

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