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Constructed Response . Topic 2: The Periodic Table

Set H: Physical and chemical properties of elements, Valence electrons.

Base your answers to questions 23 through 26 on the information below.

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23. What is the total number of elements in the “Properties of Six 23.

Elements at Standard Pressure” table that are solids at STP?

24. An atom of element G is in the ground state. What is the total 24.

number of valence electrons in this atom?

25. Letter Z corresponds to an element on the Periodic Table other

than the listed elements. Elements G, Q, L, and Z are in the same

group of the Periodic Table, as shown in the diagram below.

G
Q

L

Z

Based on the trend in melting points for elements G, Q, and L 25.

listed in the “Properties of Six Elements at Standard Pressure”

table, estimate the melting point of element Z, in degree Celsius.

\ 26. Identify, by code letter, the element that is a noble gas in the 26.
“Properties of Six Elements at Standard Pressure” table.

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