featuses of modern periodic table
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Answer:
There are eighteen vertical columns known as groups in the modern periodic table which are arranged from left to right and seven horizontal rows which are known as periods.
Group number Group name Property
Group 1 or IA Alkali metals They form strong alkalis with water
Group 2 or IIA Alkaline earth metals They also form alkalis but weaker than group 1 elements
Group 13 or IIIA Boron family Boron is the first member of this family
Group 14 or IVA Carbon family Carbon is the first member of this property
Group 15 or VA Nitrogen family This group has non-metals and metalloids
Group 16 or VIA Oxygen family They are also known as chalcogens
Group 17 or VIIA Halogen family The elements of this group form salts.
Group 18 Zero group They are noble gases and under normal conditions they are inert.
Also, Read:
History Of Modern Periodic Table Trends Of Chemical Reactivity in Periodic Table
Answer:The main features of modern periodic table
>Elements are arranged in the increasing order of atomic numbers.
>Elements in the modern periodic table are arranged in 7 periods and 18 groups.
>Horizontal rows are called periods and vertical columns are called groups