ME AJUDA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Anexos:
Soluções para a tarefa
Respondido por
1
Resposta:
A) 26 prótons, 26 elétrons e 30 nêutrons
Explicação:
O símbolo deste átomo apresenta dois números, 56 e 26, número de massa e número atômico ou número de prótons, respectivamente. O número atômico é igual ao número de elétrons, e a soma do número de nêutrons com a soma do número de prótons é o numero de massa, logo 30 + 26 = 56.
contas3cund4ria:
vlw
Perguntas interessantes
Português,
6 meses atrás
História,
6 meses atrás
Matemática,
8 meses atrás
Contabilidade,
8 meses atrás
Matemática,
1 ano atrás