Question

Mass number is
(A) Sum of protons and electrons
(B) Sum of neutrons and protons
(C) Sum of electrons and mesons
(D) Sum of protons, electrons and neutrons​

Answer 1

Answer:

option b

Explanation:

mass no. = no. of protons + no. of nuetrons

Answer 2

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$\huge\color{cyan}\boxed{\colorbox{black}{Question ❤}}$

Mass number is

(A) Sum of protons and electrons

(B) Sum of neutrons and protons

(C) Sum of electrons and mesons

(D) Sum of protons, electrons and neutrons

$\huge\color{cyan}\boxed{\colorbox{black}{Answer❤}}$

$\huge\color{cyan}\boxed{\colorbox{black}{(B) Sum of neutrons and protons}}$

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