sumit184
sumit184 sumit184
  • 24-04-2021
  • Chemistry
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Elements o fb the same group have the same chemical properties​

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hmiller07
hmiller07 hmiller07
  • 24-04-2021

Answer:

The chemical elements are arranged in order of increasing atomic number. The horizontal rows are called periods and the vertical columns are called groups. Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

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