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How does electronegative change going down and across the periodic table?

Electronegativity generally decreases as you go down a group on the periodic table due to the increasing distance between the nucleus and valence electrons, reducing the attractive force. Across a period, electronegativity generally increases due to the increasing nuclear charge, pulling valence electrons closer and increasing their attraction.


What are periods and groups?

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.


What is the difference between a period and a group on the periodic table?

Periods on the periodic table go across and are based on the number of unexcited electrons increasing as you read across. Groups on the periodic table are read down the table and share the same number of valence electrons.


How does reactivity increase on the periodic table?

Reactivity generally increases as you move from right to left across a period and from top to bottom down a group on the periodic table. This is because elements on the left side of the table have fewer electrons in their outer shell, making them more likely to lose electrons and react with other elements.


What are the rows of a periodic table called?

As with any grid, the periodic table has rows running left to right, and columns running up and down. The rows are called PERIODS and the columns are called GROUPS.

Related Questions

Which way to rows go?

THEY GO ACROSS NOT UP AND DOWN. THAT IS FOR COLUMNS.


A chart that arranges all known elements into groups?

Is the Periodic Table. The columns down are the GROUPS The lines across are the PERIODS.


Do columns go across?

No that would be rows. Columns go down.


Which choice has the element groups in the correct order from left to right on the periodic table Apex?

In the modern Periodic Table ;- #1 ; Groups are the columns down. #2 ; Periods are the lines across.


How the density properties generally change as you go down the columns of the periodic table?

The density properties generally change as you go down the columns of the Periodic Table by increasing.


Which direction are families on the periodic table?

groups on the periodic table are the vertical coumns that go up and down. A period on the periodic table are the rows that go horizontal or across.


When reading a number chart which are rows and which are columns?

Rows go across and columns go up and down.


How many up and down rows does the periodic table have?

The periodic table has 7 rows and 32 columns.


How the melting temperature properties generally change as you go down the columns of the periodic table?

The melting temperature properties generally change as you go down the columns of the Periodic Table by decreasing for metals and increasing for non-metals.


Was Mendeleev's periodic table read horizontally or vertically?

His original 1869 table had the atomic weights increasing down columns, and family members alongside each other in horizontal rows. His revised and greatly improved 1871 version had atomic weights increasing across rows, and element families in vertical columns, essentially similar to the way a modern Periodic Table is presented.


How does electronegative change going down and across the table?

Electronegativity increases across (left to right) the periodic table and decreases on going down.


Do columns go up and down or left or right?

Columns are vertical, so go up and down. The first column is column A, the second column B and so on. You will see these at the head of the columns. Rows go across and are numbered.