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How many elements are there in the first period of periodic table?
Wiki User
∙ 13y ago
Only the two with the smallest atomic numbers, hydrogen and helium. This corresponds to the fact that the innermost shell of electrons can contain only two electrons.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agotwo;hydrogen and helium
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What is a period in the table?
A period is the horizontal row on the Periodic Table of the Elements.
Is xenon in the first period of the periodic table?
No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
What is a family how many are there in periodic table?
A period is a row in the periodic table of elements.
What the period ic table is?
A period is the horizontal row on the Periodic Table of the Elements
What is the name of the raw of elements in the periodic table?
A row on the periodic table is called a period.
What kind of shell does the first period in the periodic table have?
The first period of the periodic table's elements all have 1 energy level.
Does the periodic table explain the shell model or does the shell model explain the periodic table?
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.
Elements on very first Periodic Table?
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
What is a period on the table of elements?
A period is a row of elements on the periodic table.
What is the difference3 between a family of elements and elements in the same period?
a family is a column of elements a period is a row of elements
How many elements make up period 6 in the periodic table?
There are 32 elements in the 6th period of the periodic table.
How many elements are in the 1st row of the periodic table?
In the Periodic Table of Elements there are: 118 Observed Elements 114 Officially Discovered Elements 112 Officially named Elements 92 Naturally Occuring Elements 83 Non-radioactive elements
What is a period in the table?
A period is the horizontal row on the Periodic Table of the Elements.
What element is its row in the periodic table?
An elements period is its row in the Periodic Table.
An element in its row in the periodic table?
An elements period is its row in the Periodic Table.
Is xenon in the first period of the periodic table?
No. Xenon is not the first period of the periodic table. It is placed in the 5th period of periodic table.
How many elements are there in the third period of the periodic table?
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
