Question

Answer fast!
Give reasons:-
1)Isotopes of elements are chemically similar
2) An atom is electrically neutral
3) Nucleus of an atom is heavy and positivily charge.

Answer 1

(1)because they have same no. of electron.
(2) because no of electron is equal to no of proton.
(3) heavy due to neutrons and positively charged due to proton

Answer 2

1) Isotopes of elements are chemically similar and they form similar compounds.  The reason is that they have same number of electrons. They also have same electron distribution inside atom.

2) An atom is electrically neutral in its natural state. The reason being there are equal number of electrons and protons in an atom.

3) Nucleus of an atom is heavy due to presence of neutrons and protons.
     Nucleus is positively charged due to presence of protons, which are positively charged.