Answer: c) biologists would track the number of species and their relative abundance in the gulf coast region in 2009, 2010, and 2011
Answer:
Have different numbers of neutrons
Explanation:
Isotopes of an element have different atomic numbers because thy differ in neutron number even though proton number remains the same across the isotopes. The mass number is the summation of the proton and neutron number. Phosphorus has approximately 23 isotopes whose mass number range between 25 and 47. Only ³¹P is stable.
I did buu whats the question?
That instant ... typically some moment on june 21 or 22 ... marks
the beginning of the northern hemisphere Summer.
