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Course: Class 10 Chemistry (India) > Unit 5
Lesson 3: Groups & periodsGiven atomic number find position and vice-versa (Solved example)
If you are given with the atomic number of an element you can find it's period number and group number. The period number is related to the number of electron occupied shells in the element and the period number is linked to its valence electrons. Let's see how.
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Why does the nitrogen appear twice?? I am pretty sure Sulphur comes there...At atomic number 17(3 votes)
Yes @ Mayur Matada I guess he made a mistake. Sulphur does come there not Nitrogen at Atomic Number 17.(1 vote)