The closeness of a measurement to its true value is a measure of its Accuracy.
Answer
Calculating the mass number for an atom requires that we know the atomic number and the number of protons in the atom’s nucleus. The mass number then gives us the average weight of atoms of a given element. However, as long as the number of protons equals the number of neutrons, the values balance out and we always obtain a whole number for the mass number.
Explanation:
those 3
250gTi x (1mol/47.87 [molar mass]) =5.22247 moles
Bohr's atomic model proposed that electrons move in specific orbits around the nucleus of an atom.
CaBr2(s) Ca+2(aq)+2Br-(aq) which means, <span>Solid is turning into free ions so entropy is increasing .</span>