Respuesta :

He is in period 1

Ge is in period 4

Rb is in period 5

I is in period 5 as well

-Seth

  1. He is in period 1
  2. Ge is in period 4
  3. Rb is in period 5
  4. I is in period 5

PERIOD OF ELEMENTS:

  • Period of an element refers to the horizontal arrangement of elements on the periodic table i.e. across the periodic table.

  • The period is numbered from 1 to 7. Elements in the same period are said to possess the same number of electron shells.

  1. He is the chemical symbol for Helium
  2. Ge is the chemical symbol for Germanium
  3. Rb is the chemical symbol for Rubidium
  4. I is the chemical symbol for Iodine.

Therefore;

  1. He is in period 1
  2. Ge is in period 4
  3. Rb is in period 5
  4. I is in period 5

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