It is known that atoms contain protons, neutrons and electrons. If the mass of neutron is assumed to be half of its Qriginal value whereas that of electron is assumed to be twice of this original value. The atomic mass of 6 C 12 will be-

Question

It is known that atoms contain protons, neutrons and electrons. If the mass of neutron is assumed to be half of its Qriginal value whereas that of electron is assumed to be twice of this original value. The atomic mass of 6 C 12 will be- (A) 25 % less (B) 75 % less (C) Twice (D) one-half of its

Tardigrade Admin · Accepted Answer

A=p+n, A=Z+n A=12, Z=6 n=12-6, n=6 =(9/12) × 100=75 % =100-75=25 % less mass

Q. It is known that atoms contain protons, neutrons and electrons. If the mass of neutron is assumed to be half of its Qriginal value whereas that of electron is assumed to be twice of this original value. The atomic mass of $_{6} C^{12}$ will be-

$25%$ less

$75%$ less

Twice

one-half of its

$A = p + n, A = Z + n$

$A = 12, Z = 6$

$n = 12 - 6, n = 6$

$= \frac{9}{12} \times 100 = 75%$

$= 100 - 75 = 25%$ less mass

Q. It is known that atoms contain protons, neutrons and electrons. If the mass of neutron is assumed to be half of its Qriginal value whereas that of electron is assumed to be twice of this original value. The atomic mass of 6​C12 will be-

25% less

75% less