Physics, asked by harsh246810, 11 months ago

21. which among the following elements whose atomic number are given below belong to the
Same period? Give the reason
(17,10,20,12,19,15 )

Answers

Answered by aditichaurasia454

2

Answer:

Explanation:

the answer is given below :

Attachments:

Answered by lipu6771

1

Answer:

17=chlorine

10=neon

20=calcium

12=magnesium

19=potassium

15=phosphorus

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