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Every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons. It goes down the Periodic Table like that. This also means that the atomic weight of the elements gets larger and larger in each period.

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15y ago
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12y ago

Elements in a Period Have how many shells for the Electrons in Common. eg. period 3 elements all have 3 shells.

The number of electrons in a shell goes like this:

2,8,8,18,18,18,3.

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12y ago

See the link bellow for details.

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Q: What do periods and groups have in common in a periodic table?
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Related questions

How many periods and groups are there in the periodic table?

Modern periodic table has 7 periods and 18 groups.


How many groups and periodic are on the periodic table?

7 periods and 18 groups are there on the modern periodic table.


How many periods are on the periodic table?

7The periodic table has 7 periods and 18 groups.


Horizontal rows on Periodic Table?

The horizontal rows on the periodic table are periods. Groups are the vertical columns on the periodic table.


The columns in the periodic table are called?

groups


What are the classification of element in a periodic table?

periodic table is classified into groups and periods.There are 18 groups and 7 periods in periodic table.


How many periods and groups are on the modern periodic table?

7 periods and 18 groups are there on the modern periodic table.


What are the horizontal rows on the periodic table?

The rows (Horizontal) are called Periods and the Columms (Vertical) are called Groups.


What are the groups and period of the periodic table?

Groups are the vertical columns. Periods are the horizontal rows in the periodic table.


How many period are there in the Modern Periodic Table?

The Periodic Table has 18 groups and 7 periods.


How much periods does a periodic table have?

A periodic table has seven periods. It also has 18 groups and 4 different families.


What are the horizontal groupings in the periodic table named?

The horizontal lines are called "periods" and show how many "shells" each atom hasThe horizontal rows in the periodic table are called periods. The vertical columns are called groups.