Why in periodic table 3 period has 8 elements rather than 18?

Anonymous

∙ 10y ago

Updated: 8/21/2019

That is because the 4s level (which places those elements in period 4) is fist filled with 2 electrons before the 3d level is on terms to be filled with 10 electrons (with a higher energy level than the ground level of both 4s orbits of K and Ca). This 3d-block is called the transition metals (nr.21-30, Sc to Zn)

Wiki User

∙ 10y ago

What else can I help you with?

How many elements make up period 6 in the periodic table?

There are 32 elements in the 6th period of the periodic table.

In the periodic table what is a period?

A period on the periodic table is a row.This is the horizontal section of the periodic table.

An element in its row in the periodic table?

An elements period is its row in the Periodic Table.

What element is its row in the periodic table?

An elements period is its row in the 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

What period on the periodic table of elements contains radioactive elements and what are they called?

it was found in 1896. you can not find them on the periodic table. you may find some, but often some are.

What is the name of the raw of elements in the periodic table?

A row on the periodic table is called a period.

What is an element in its row in the periodic table?

An elements period is its row in the periodic table.

What is a period from the periodic table of elements?

A row.

How are the elements arranged?

Elements are arranged on the periodic table based on their atomic number, which is the number of protons in their nucleus. This arrangement groups elements with similar properties in columns called groups or families, while elements in the same period have the same number of electron shells.

What row number in the periodic table of elements is neon in?

Neon is in row 2 of the periodic table of elements.

What element is in group 4 and period 2 on the periodic table?

Group 4 elements on the periodic table contain no period 2 elements whatsoever.

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