# Why is the periodic table organized like it is?

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## Why is the periodic table organized like it is?

Explanation: Periodic Table is based on periodic law which states that if elements are arranged in order of increasing atomic numbers then their properties are repeated in periodic manner. It is arranged in order of increasing atomic numbers.

### Who determined the organization of the periodic table?

Dmitri Mendeleev
In 1869, Russian chemist Dmitri Mendeleev created the framework that became the modern periodic table, leaving gaps for elements that were yet to be discovered. While arranging the elements according to their atomic weight, if he found that they did not fit into the group he would rearrange them.

How periods on the periodic table are organized?

Periods in the periodic table. In each period (horizontal row), the atomic numbers increase from left to right. The periods are numbered 1 through 7 on the left-hand side of the table. Elements that are in the same period have chemical properties that are not all that similar.

Where are the groups in the periodic table?

Groups are numbered from 1 to 18. From left to right in the periodic table, there are two groups (1 and 2) of elements in the s-block, or hydrogen block, of the periodic table; ten groups (3 through 12) in the d-block, or transition block; and six groups (13 through 18) in the p-block, or main block.

## How do you organize your periodic table?

Organize the item vertically and horizontally to show a pattern or relationship. Your periodic table must contain a minimum of 20 elements, arranged in a minimum of 5 groups and 4 periods (or the reverse). Not every space within a group or period needs to be filled. You must have a title for your groups and periods.

### What are 3 ways the periodic table is organized?

Periodic table is organized by their valence electrons, atomic number and their atomic mass ( and also their reactivity/ groups and families). Periodic table lists their elemental symbol, atomic mass and their name.

How are elements arranged on the periodic table Brainly?

The chemical elements see arranged in order of increasing atomic number. The horizontal rows are called periods and vertical columns are called groups .

What are the families on the periodic table?

Families of the Periodic Table. On the periodic table, there are families which are groups of elements with similar properties. These families are alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, halogens, noble metals, and noble gases.

## What are the 3 groups in the periodic table?

The elements can be broadly divided into metals, nonmetals, and semimetals.

### How elements are organized in groups and rows on the periodic table?

The chemical elements are arranged in order of increasing atomic number. The horizontal rows are called periods and the vertical columns are called groups. Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

How are elements organized on the periodic table rows and columns?

From left to right across each row, elements are arranged by increasing atomic mass. Mendeleev discovered that if he placed eight elements in each row and then continued on to the next row, the columns of the table would contain elements with similar properties. He called the columns groups.