13.An aton contains equal numberthat of the electron were doubled of t

1.	13.An aton contains equal numberthat of the electron were doubled of the actual values, then the atomicA) become approximately doubleofneutrons and electrons. Hypothetically, ifthe mass ofthe neutron were halved andmass wouldB) become approximately halfbecome approximately three-fourthD) remain unaffected.
Answer» Mass of electron is negligible, thus doubling it will not change anything. Atomic Mass = Mass of protons + Mass of neutrons Mass of neutron is halved. In carbon 12, number of protons = number of neutrons = number of electrons = 6 original atomic mass = 6 + 6 = 12 new atomic mass = 6 + 3 = 9 (12 - 9) / 12 = 3/12 = 1/4 = 0.25 So, atomic mass will be reduced by 25%.

13.An aton contains equal numberthat of the electron were doubled of the actual values, then the atomicA) become approximately doubleofneutrons and electrons. Hypothetically, ifthe mass ofthe neutron were halved andmass wouldB) become approximately halfbecome approximately three-fourthD) remain unaffected.

Answer»

Mass of electron is negligible, thus doubling it will not change anything.

Atomic Mass = Mass of protons + Mass of neutrons

Mass of neutron is halved.

In carbon 12,

number of protons = number of neutrons = number of electrons = 6

original atomic mass = 6 + 6 = 12

new atomic mass = 6 + 3 = 9

(12 - 9) / 12 = 3/12

= 1/4 = 0.25

So, atomic mass will be reduced by 25%.