Isotopes are variants of a particular chemical element which differ in neutron number (neutral particle)and all isotopes of a given element have the same number of protons (positive particle) in each atom.So isotope B of the sodium will have 11 protons, 11 electrons but it may have a wide range in its number of neutrons.
Answer:
8.327906
Explanation:
1 gallon [US, liquid] to litres = 3.78541 litres
5 gallon [US, liquid] to litres = 18.92706 litres
10 gallon [US, liquid] to litres = 37.85412 litres
15 gallon [US, liquid] to litres = 56.78118 litres
20 gallon [US, liquid] to litres = 75.70824 litres
25 gallon [US, liquid] to litres = 94.6353 litres
30 gallon [US, liquid] to litres = 113.56235 litres
40 gallon [US, liquid] to litres = 151.41647 litres
50 gallon [US, liquid] to litres = 189.27059 litres
we could tell that 2.2 gallons are in between 8.327906 litres
D looks like the oldest one because there is barley anything there. if not then I would do b
