asap35 asap35
  • 23-07-2019
  • Chemistry
contestada

someone please help

someone please help class=

Respuesta :

ChemBen
ChemBen ChemBen
  • 23-07-2019

Answer:

A - 8

B - 8

C - O

D - 26

E - 30

F - Fe

Explanation:

Use these things:

1. A = Z + N,

where A - mass number,

Z - atomic number,

N - number of neutrons

2. atomic number = number of protons

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