210006608 210006608

08-02-2021
Chemistry

contestada

In each of the following cases, give the number or the element symbol represented by X.

40 18 X
X 20 Ca
31 X P

Respuesta :

rebel57 rebel57

17-02-2021

Answer:

X20 Can it is answer for this question

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khopilatamu05 khopilatamu05

21-02-2021

1) Ar, argon
2) 40
3) 15

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