Isotopes are forms of the same elements which contain equal number of protons but different number of nucleus in their nuclei, thus the differ in relative atomic mass but they have same chemical properties. The mass number is the summation of number of proton and number of neutron of an atom. If the mass number is known, then one need to know the number of proton in the atom in order to calculate for the number of neutron.
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Answer:
0.2615 g
Explanation:
Given that mass of the body = 120 lb
The conversion of lb to g is shown below as:-
1 lb = 454 g
So, 120 lb = 120*454 g = 54480 g
The substance is of the human body
So, Mass of that substance in the body of mass 54480 g is:-
<u>0.2615 g of that substance would be found in the body of a person weighing 120 lb.</u>
Yes if you don’t believe me just search it up
<span>The correct answer is Na+, reduction is the gaining of electrons by ions, the ease at which an ion or an atom gains electrons depends on its position in the electrochemical series. Electrochemical series arranges atoms of elements in order, based on the ease of gaining electrons. In this case, Na+ can easily gain electrons compared to the other ions given. We can also look at it based on the electromotive force of each (EMF); +0.77 Vb. -0.25 Vc. -2.71 Vd. +0.15; this evidently shows that Na+ can undergo reduction easily compared to the other ions</span>