Group 1A: The Alkali Metals: H, Li, Na, and K
Group 2A: The Alkali Earth Metals: Be, Mg, and Ca
Group 3A: The Boron Family: For the most part, only Al
These atoms all want to get rid of their 'remainder' electrons so they have a full outer shell; like the Noble Gases.
Group 1A only has to loose 1 electron to be in its 'happy' state. (+1 charge)
Group 2A has to loose 2 electrons (+2 charge)
Group 3A has 3 to loose. (+3 charge)
Since a regular atom is naturally neutral (equal number of electrons to protons), loosing electrons (which are negative) off set the atom's 'balance of charge' and make it positive. At this point, the atom is no longer an atom, but an ion.
elements that form positive charged ions are present on the extreme left means s-block but some r also present in d-block & p-block. element forming positive charged ions r known as electro-positive elements.this depends on ionisation energy.
Alkali Metals, which is group 1(far left), the reason is because they are trying to become a noble gas which is group 8(far right) and all alkali metals have one too many electrons to be a noble gas.
Left Side (metals)
There are 18 groups and 7 periods in the modern periodic table.
Groups in the periodic table are the vertical columns in which the elements are arranged.
The elements with similar properties are placed in groups. Periodic table contain 18 groups.
There are 18 groups that make up The Periodic Table of Elements.
A group is a column in the periodic table of elements.
There are 18 groups in the periodic table of elements.
There are 18 groups and 7 periods in the modern periodic table.
Groups in the periodic table are the vertical columns in which the elements are arranged.
There are 18 groups in the Periodic Table of elements.
There are a total of 18 groups on The Periodic Table of Elements.
In the periodic table chemical elements are orderd in periods and groups.
All groups in the periodic table contain chemical elements.
The elements with similar properties are placed in groups. Periodic table contain 18 groups.
There are 18 main groups in the modern periodic table of elements.
The Periodic Table of Elements
Groups are arranged as columns in the periodic table; the contained elements have similar properties.
There are 18 groups that make up The Periodic Table of Elements.