vulekhai090206 vulekhai090206
  • 12-10-2021
  • Chemistry
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Cho biết X, Y (ZX < ZY) là hai nguyên tố mà lớp vỏ nguyên tử có electron cuối cùng điền vào phân lớp 4s.

a/ Viết cấu hình electron của X, Y.

b/ Viết kí hiệu nguyên tử của X, Y.

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Аноним Аноним
  • 12-10-2021
can you please translate it to english?
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