Question

True or False
Electrons contribute most of the mass of an atom?​

Answer 1

Answer:

False

Explanation:

• Mass of the atom is mostly contributed by nucleus.
• Nucleus consists of Protons and Neutrons
• Mass number defined by No of protons+No of neutrons

Answer 2

Answer:

False

Explanation:

Electrons are the lightest particles of an atom with a mass aptoximate to zero

formular:

${ \rm{ {}^{ \: \: \: 0} _{ - 1} e}}$

hence mass number = 0