Tarefa simples : Calcule o número de prótons,nêutrons e elétrons nos íons. 45 Sc³⁺ e 35 Cl- 21 17.... Pergunta de ideia deMadara00

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Tarefa simples : Calcule o número de prótons,nêutrons e elétrons nos íons.

45 Sc³⁺ e 35 Cl-
21 17

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Olá!

Resolução,

Elemento 1,

Prótons = 21

Elétrons = 18

Nêutrons =

A = P + N

45 = 21 + N

N = 24 Nêutrons

____________

Elemento 2,

Prótons = 17

Elétrons = 18

Nêutrons =

A = P + N

35 = 17 + N

N = 18 Nêutrons

Abraços!

Madara00 Obrigado :D

RhuanKaldeira De nada =)

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Galera dever de ingles me ajuda ai 1) Match the words to find the corresponding Simple past form 1. buy 2.come 3.feel 4.go 5. eat ( )went ( )saw ( )bought ( )came ( ) drew 6.see 7. meet 8. wake 9. have 10.draw ( ) woke ( ) ate ( ) had ( ) felt ( ) met

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