Parisian14 Parisian14

08-02-2021
Chemistry

contestada

Which is element number 2&20

Respuesta :

08-02-2021

Answer:

2- Helium(He)

20-Calcium(Ca)

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Mdtroncoso Mdtroncoso

08-02-2021

Answer:

Do you mean under 2 & 18 or under 4 & 20?

Explanation:

2 & 20 are in opposite sections of the periodic table. If you mean 2& 18 the element is Krypton or if you mean 4 & 20 the element is Strontium

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