Question

science
std 10th
modern periodic chapter (?)
Q1.what are groups
Q2.what are periods
Q3.How many groups and periods are ther in MODERN PERIODIC TABLE?
Q4.Write the name of the elements of halogen family
Q5.Write merits of modern periodic table
6.Name the two series present in the modern periodic table ​

Answer 1

Answer:

group means many people are sitting means a group of people are sitting

Answer 2

$\: font \: red \: </p><p>group means many people are sitting means a group of people are sitting</p><p>/: red /: font$

follow