Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Justify the position of hydrogen in the periodic table.

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Hydrogen is the first element in the periodic table. Its atomic number is 1, and it has only one electron in its valence shell. So, it belongs to the first group and the first period of the periodic table.