![Write down the characteristics of the elements having atomic number 17.Electronic configuration Period number Group number Element family No. of valence electrons Valency Metal or non - metal . Write down the characteristics of the elements having atomic number 17.Electronic configuration Period number Group number Element family No. of valence electrons Valency Metal or non - metal .](https://toppr-doubts-media.s3.amazonaws.com/images/10512543/363cb471-cc7c-48c2-b0f8-b34b1230f5ad.jpg)
Write down the characteristics of the elements having atomic number 17.Electronic configuration Period number Group number Element family No. of valence electrons Valency Metal or non - metal .
![In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number. - Science and Technology 1 | Shaalaa.com In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number. - Science and Technology 1 | Shaalaa.com](https://www.shaalaa.com/images/_4:c358c469d03c41f181dbe265c90abeed.png)
In the modern periodic table, the positions of 1 to 20 elements are shown here. Identify the elements A and B. Write their atomic number. - Science and Technology 1 | Shaalaa.com
![Periodic Table of Elements -Symbols, Atomic Number, Atomic Mass, Groups, Videos with FAQs of Periodic Table Elements. Periodic Table of Elements -Symbols, Atomic Number, Atomic Mass, Groups, Videos with FAQs of Periodic Table Elements.](https://cdn1.byjus.com/wp-content/uploads/2020/09/Periodic_table-700x398.png)