Question

Fill in the blanks.

(a) The total number of protons present inside the nucleus of an atom is_____.
(b)_____is the sum of protons and neutrons present inside the nucleus.

c) A_____is formed when two or more atoms combine together chemically

(d) A molecule made up of three atoms is called____
molecule
(e) Ammonium radical is represented as_____.

(f) Atoms of the same element having same atomic number and different mass numbers are called_____.

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Answer 1

Answer:

d - triatomic

f - valency

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