The same number of electrons IN THEIR OUTER SHELL. Look up electron configuration for more detail.
A group in the periodic table is a column of elements that share similar chemical properties due to having the same number of electrons in their outer energy level. Groups are vertical columns and are numbered from 1 to 18.
First off, there is no "salt" on the periodic table of the elements. Salt is a compound. However, you may be talking about "sodium". If that's the case, sodium is NOT in the same column as oxygen in the periodic table. Sodium is in the first column while oxygen is in the sixteenth column.
a family is a column of elements a period is a row of elements
The elements located in the first column, group IA on the periodic table, are called alkali metals.
There are 18 groups and 7 periods in the modern periodic table.
Representative elements
groups
A group in the periodic table is a column of elements that share similar chemical properties due to having the same number of electrons in their outer energy level. Groups are vertical columns and are numbered from 1 to 18.
A group of elements.
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hydrogen
Chemical properties.
Yes, it is.
groups or family:))
groups
In the Periodic Table of the Elements, a column (group) contains all elements that exist with the group number of electrons in the outer energy level of an atom of that element.
A vertical column is called a 'group.' A horizontal row is called a 'period,' thus the periodic table.