Question

18. Fill in the blanks spaces with appropriate words:
(a) Almost all the mass of an atom concentrated in a small space within the atom, is called
(b) The central part of an atom holding ............... charged particles and neutral
called nucleus.
(c) The volume of nucleus is ............. as compared to the volume of complete atom.
(d) The nucleus is positively charged, because of the presence of ..............​

Answer 1

Answer:

1) nucleus

2) positive

3) smaller

4)Protons

Explanation:

hope it helps you...

Answer 2

Answer:

18.

(a) nucleus

(b) positive

(c) smaller

(d) protons