Question

modern periodic table contains​

Answer 1

Answer:

all the 118 elements

settled in the ascending order of atomic number of the elements

it has 18 groups and 7 periods.

Answer 2

Answer:

it consists 18 groups and 7 rows there are 118 elements and first 2 group are called representative element and 3-12 are called transition elements 13-17 are called representative elements and 18 is called noble gas. it will have active metals heavy metals,metalloids and non metals non metals (halogen) non metals i(inert gas)

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