If calcium has only two isotopes, calcium-40 and calcium-44, which would be the most abundant?1 pointcalcium-40calcium-44both isotopes would have the same abundanceboth isotopes are not likely to exist

Calcium-40 is a stable isotope of calcium, which has the atomic number 20.Compare calcium-40 and potassium-40 by determining which statements are true.They have the same number of protonsThey have the same mass numberThey have the same number of neutronsThey have different atomic numbers

Which of the following is the most abundant form in which calcium is found in the inorganic matrix of the bone?Multiple ChoiceCalcium carbonateHydroxyapatiteCalcium oxalateCalcium pyrophosphate

An unknown element, Z, has 3 isotopes: Z5, Z6 and Z8. Given that the atomic mass of Z is 7, and the relative abundance of Z5 is 20%, which of the following statements are correct? 1. Z5 and Z6 are present in the same abundance. 2. Z8 is the most abundant of the isotopes. 3. Z8 is more abundant than Z5 and Z6combined. A. 1 only B. 2 only C. 3 only D. 1 and 3 E. 1, 2 and 3

How many atoms are in 40.08 grams of calcium?

Atomic mass of calcium is 40. The mass of2.5 gram atoms of calcium is _