The atom with the electron configuration

1s\(^{2}\)2s\(^{2}\)2p63s\(^{2}\)3p\(^{6}\)3d\(^{10}\)4s\(^{2}\)4p\(^{4}\) is in

  • A period 4, p- block
  • B period 3, p- block
  • C period 4, d- block
  • D period 3, d- block
waec 2022chemistry

The correct answer is A. period 4, p- block

Selenium is a chemical element with the symbol Se and atomic number 34. It is a non-metal

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