Question

heya !!!!

Solve these followings -------

◆How we find no. of neutron ????

◆ what is the meaning of gain nd lose ? explain with example ???

◆ solve the que in given pic !!!!!

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# Help me freinds !!!!

Answer 1

hyy dear
here is your answer

A) No. of neutron = atomic mass of element - no. of proton in those element

B) Anion means take an electron from another element it is also known as gain of electron and these are mostly done by non- metal
for example:- Al-²
no. of proton:- 13
no. of electron:-15


lose of electron means give one or more then one electron to another element which is mostly done by metal

for Example:- mg+
no. of proton :-12
no. of electron :-11

c) in your given que.
no. of proton :-89
no. of electron:-89
no. of neutron:- atomic mass - no. of proton
:- 231-89
:- 142