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Elements in the Periodic Table are arranged in periods (rows) and groups (columns). Atomic number increases as you move across a row or period. The period number of an element signifies the highest unexcited energy level for an electron in that element. Elements within a group share several common properties. Groups are elements have the same outer electron arrangement. The outer electrons are called valence electrons.
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∙ 9y ago
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∙ 14y agoWiki User
∙ 9y agoElements in the periodic table are arranged in periods and groups . Atomic number increases as you move across a row or period.
Wiki User
∙ 14y agoperiods and group of modern peroidic table
Wiki User
∙ 12y agoGroup is a column going down.
Period is a row going across.
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How many periods and groups are there in the periodic table?
Modern periodic table has 7 periods and 18 groups.
How many groups periods are to be found in the periodic table?
7 periods and 12 groups
How many periods and groups are on the modern periodic table?
7 periods and 18 groups are there on the modern periodic table.
What is the difference between periods and families?
The horizontal rows are known as periods. The vertical columns are known as groups / families.
What is the vertical lines name on the periodic table of elements?
They are called groups and the horizontal rows are called periods
What are groups and periods in periodic table?
The columns are called groups and rows are called periods. There are 18 groups and 7 periods.
How many periods and groups are there in the periodic table?
Modern periodic table has 7 periods and 18 groups.
How many groups periods are to be found in the periodic table?
7 periods and 12 groups
How do groups and periods on the periodic table differ?
Groups are vertical and contain chemical elements with similar properties; periods are horizontal.
How do element's groups run and how do element's periods run?
groups run top to bottom periods run left to right
How many periods and groups are on the modern periodic table?
7 periods and 18 groups are there on the modern periodic table.
The horizontal rows in a periodic table are called groups?
False; That would be called groups. Periods are horiztonal rows.
What is the difference between periods and families?
The horizontal rows are known as periods. The vertical columns are known as groups / families.
How many periods of elements are there?
The periodic table of Mendeleev has 18 groups and 7 periods.
What is group and periods in chemistry?
Groups are columns and periods are rows in the periodic table of Mendeleev.
How many groups and how many periods does the modern periodic table have hydrogen and helium should be counted as the first period.?
The periodic table has 18 groups ant 7 periods. Hydrogen and helium are considered members of the first period.
What are the horizontal groups of the periodic tables called?
the horizontal rows (not groups) are known as periods.
