Tolong dijawab kimia. nanti dikumpulkan​

Jawaban:

1.a. proton = 30

elektron = 30

neutron = 35

b. proton = 26

elektron = 24

neutron = 30

c. proton = 7

elektron = 10

neutron = 7

2. 40

X

18

Penjelasan:

semoga membantu ^^