Respuesta :
He is in period 1
Ge is in period 4
Rb is in period 5
I is in period 5 as well
-Seth
- He is in period 1
- Ge is in period 4
- Rb is in period 5
- 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.
- He is the chemical symbol for Helium
- Ge is the chemical symbol for Germanium
- Rb is the chemical symbol for Rubidium
- I is the chemical symbol for Iodine.
Therefore;
- He is in period 1
- Ge is in period 4
- Rb is in period 5
- I is in period 5
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