![An element 'X' belongs to 3^rd period and group 17 of the periodic table. State its (i) electronic configuration, (ii) valency. Justify your answer with reasoning. An element 'X' belongs to 3^rd period and group 17 of the periodic table. State its (i) electronic configuration, (ii) valency. Justify your answer with reasoning.](https://i.ytimg.com/vi/qnqX8jx5bbo/maxresdefault.jpg)
An element 'X' belongs to 3^rd period and group 17 of the periodic table. State its (i) electronic configuration, (ii) valency. Justify your answer with reasoning.
![Justify the position of hydrogen in the periodic table on the basis of its electronic configuration. Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/33082599_web.png)
Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.
![javascript - React Native Table Component, justify text in tables at the top instead of the center - Stack Overflow javascript - React Native Table Component, justify text in tables at the top instead of the center - Stack Overflow](https://i.stack.imgur.com/SXcDQ.png)
javascript - React Native Table Component, justify text in tables at the top instead of the center - Stack Overflow
![On the basis of quantum numbers, justify that the sixth period of the periodic table should have 32 elements. On the basis of quantum numbers, justify that the sixth period of the periodic table should have 32 elements.](https://i.ytimg.com/vi/bqUCgXEmkVQ/maxresdefault.jpg)
On the basis of quantum numbers, justify that the sixth period of the periodic table should have 32 elements.
![horizontal alignment - How to align table headers differently than all other table cells? - TeX - LaTeX Stack Exchange horizontal alignment - How to align table headers differently than all other table cells? - TeX - LaTeX Stack Exchange](https://i.stack.imgur.com/k9CNk.png)