(c) different number of Neutrons.
Answer:(c) different number of Neutrons.
Mg 10% 25Mg is stable with 13 Neutrons.
H 99.985% 1H is stable with 0 Neutrons.
Cl 75.77% 35Cl is stable with 18 Neutrons.
Br 50.69% Br is stable with 44 Neutrons.
Ru 12.7% Ru is stable with 55 Neutrons.
Pt 32.967% 194Pt is stable with 116 Neutrons.
Al 100% 27Al is stable with 14 Neutrons.
Pb 24.1% Pb is stable with 124 Neutrons.
Ti 73.8% 48Ti is stable with 26 Neutrons.
Ar 99.600% 40Ar is stable with 22 Neutrons.
Zn 4.1% Zn is stable with 37 Neutrons.
Te 18.84% 126Te is stable with 74 Neutrons.
The sum of the number of the Neutrons and electrons.
(b) One of the oxygen atoms has gained two Neutrons.
Similarly, the mass of aluminium is 27 u(13 protons+14 Neutrons).
It is simply inconceivable that a person has such powerful Neutrons!
(Each isotope has a different number of Neutrons in its nucleus.).
Since it has an atomic
mass of 23 it must have 12 Neutrons.
Scientists say the universe is made up of electrons, protons, and Neutrons.
We take an unstable element like uranium 235,
which has too many Neutrons.
(Free Neutrons are, in fact, the most dangerous radiation emitted by reactors.).
Neutron flux: The number of Neutrons per area delivered in a given time.
(b) elastic collision of Neutrons with heavy nuclei will not slow them down.
This is because just like electrons, Neutrons are also Fermion obeying Pauli's exclusion principle.
(d) is not important because oxygen nucleus have equal number of Neutrons and protons.
It is also used in nuclear reactors because it does not absorb Neutrons easily.
The atomic mass tells us how many protons and Neutrons are in the nucleus.
Tritium has one proton and two Neutrons, possessing a half life of 12.43 years.