katie-mason_60c280b0ba259

katie-mason_60c280b0ba259

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Username: katie-mason_60c280b0ba259
Joined: June 2021
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Last Active: June 2021
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Ã sÃ³ usar a fÃ³rmula: A=Z+N A: A=160, Z=70, N=90 B: A=164, Z=74, N=90 C: A=164, Z=70, N=94 O nÃºmero de elÃ©trons de B, quando forma um Ã¢nion bivalente (ganha 2 elÃ©trons) Ã© 76.

in SAO DADOS TRES ELEMENTOS GENERICOS A,B,C O ATOMO A TEM NUMERO ATOMICO 70 E NUMERODE MASSA 160.? Comment by katie-mason_60c280b0ba259 June 2021