Answer:
- <em><u>Option B) reactive to nonreactive</u></em>
Explanation:
<u>A) Solid to gas</u>
This might apply, because most of the gases are to the right portion of the periodic table
There are just a few elements that are gases at room temperature; a total of 11: six noble gases (group 18), two halogens (group 17), oxygen (group 16), nitrogen (group 15), and hydrogen (group 1).
Hydrogen is an exception to this trend because they are in the left part of the periodic table.
<u>B) Reactive to nonreactive</u>
The most reactive metals are in group 1 (alkali metals) and the most reactive nonmentals are in the group 18 (halogens). Hence, it is false that the from left to right the preperties go from reactive to nonreactive.
Hence, this is the one that cannot apply.
<u>C) Metal to metalloid to nonmetal</u>
It is true that the metallic character of the elements decreases from left to right; the metals are to the left, going to the right you find some metalloids, and further to the right you find the nonmetals.
Hence, this trend is correct.
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<u>D) Increasing number of outer-shell electrons</u>
The number of outer-shell electrons definetly increase from left to right.
The number of electrons in neutral atoms equals the number of protons (to balance the positive and negative charges). Since, the atomic number (the number of protons) increase from left to right, the number of electrons also increase.
In a period (a row of the periodic table) the electrons add to the same outer-shell, then you will find that the number of electrons of the outer-shell increase from left to right. Hence, this is also a correct trend.
In conclusion, the only trend that does not apply is the described by the option B).
