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Answered 2012-02-23 19:46:53

There are 4 non-metals in the third period of the periodic table (Phosphorous, sulfur, chlorine, and argon)

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In the third period there are 5 nonmetals, silicon and everything to its right.


There are 8 elements in the third period of periodic table. The elements belong to group-1,2,13,14,15,16,17 and 18


Sulfur (S, element number 16) is on the third period of the periodic table.


Argon is in the third period of the modern periodic table.


Argon (Ar, element number 18) is the last element in the third period of the periodic table.


Silicon is in the third period, column 14.


The elements on the periodic table are divided in three categories which are metals, non-metals and metalloids.Metals and nonmetals are two categories that are used to classify the elements in the periodic table. The third is inert gases.



There is no such element on the Periodic Table


The only three metals in the third period are sodium, magnesium, and aluminum.


Sodium has the largest atomic size in the third period.


Sulphur is a non-metal in the p block of the periodic table, and is found in Group 16/6A in the third period.


Sulphur is a non-metal in the p block of the periodic table, and is found in Group 16/6A in the third period.


The shell model explains the organization of the periodic table. The elements in the first period have electrons in the first shell; the elements in the second period have electrons in the first two shells; the elements in the third period have electrons in the first three shells; and so on.


There are eight third period transition elements on the periodic table.


The third element on the Periodic Table of the Elements is Lithium (Li), which has an atomic number of 3.


If you have a periodic table of the elements available, look at the second column from the right. Those elements are often referred to as "halogens". The "rows" in the periodic table are often referred to as the "periods". So the halogen from the third period would be "CL", or chlorine. Glad to help with your homework.


That element would be silicon. The fourteenth column, third row of the Periodic Table of Elements.


A column of elements (going down, vertically) is called a group. A row of elements (going across, horizontally) is called a period. Sodium, element 11, is in the first group and the third period on the periodic table.


The elements in column 18 of a wide form periodic table or Column VIII of a narrow form periodic table, commonly called the noble gases. Also, both elements in the first period, the elements in groups 15, 16, and 17 of the second period, and the element in group 17 of the third period.


All of these elements are located in the third period of the periodic table. Hence, they have the identical valence shell.


Argon. "Period 3" means the third row of the periodic table. Noble gases are in "Group 18", the column on the far right.


Their valency is one. They both belongs to the third period.


Rows (Periods) on the Periodic Table tell you how many electron shells are in an atom of that elemnt. The further down you go in the Periodic Table, the more electron shells there are. It goes in an ascending order, the first period of elements have 1 electron shell, the second period 2 electron shells, the third 3 shells and so on.


A period is a horizontal row on the periodic table of the elements. There are seven periods on the periodic table. Each period corresponds to the highest energy level that contains electrons. For example, the elements in the first period have electrons in the first energy level, which is the only energy level available; the elements in the second period have their highest energy electrons in the second energy level; the elements in the third period have their highest energy electrons in the third energy level, and so on.



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