Question

2) Determine o numero de prótons, elétrons e nêutrons em cada átomo: 40 a) 20 Ca 2+ : p + =___e - =___n 0 =___ 45 b) 21 Sc : p + =___e - =___n 0 =___ 1 c) 1 H : p + =___e - =___n 0 =___ 80 d) 35 Br : p + =___e - =___n 0 =___ 32 e) 16 S 2- : p + =___e - =___n 0 =___ 27 f) 13 Al 3+ : p + =___e - =___n 0 =___ 40 g) 19 K + : p + =___e - =___n 0 =___ 7 h) 3 Li: p + =___e - =___n 0 =___ 56 i) 26 Fe 3+ : p + =___e - =___n 0 =___ 35 j) 17 Cl - : p + =___e - =___n 0 =___

Answer 1

Resposta:

a) Ca²+ p= 20, e=18, n=20

b) Sc p= 21, e= 21, n=24

Explicação:

c)H p=1, e=1 , n=0

d)Br p=35, e=35, n= 45

e)S²- p= 16, e=18, n=16

f)Al³+ p=13, e=10, n=14

g)K¹+ p=19, e=18, n=21

h) Li p=3, e=3, n=4

i) Fe³+ p=26, e=23, n=30

j) Cl¹- p=17, e=18, n=18