Answer:
B. 26amu
Explanation:
The nucleus of an atom in an element contains protons, electrons and neutrons. The proton number equals the electron number in a neutral atom. The proton number is also called the atomic number, denoted by Z.
The mass number also called Atomic mass unit (amu) in this case, of an element is the sum of the proton number and the neutron number in the atom of that element. The mass number is denoted by A.
Hence, A = Z + N
Where A = Mass number
Z = Proton (atomic number)
N = Neutron number
In this question, N is 11 while Z is 15
Hence, the mass number of the element in the question, in AMU, is 15 + 11 = 26amu.
<span>There are two structures that would be found at a passive continental margin. These structures are continental shelves and continental slopes.</span>
Intertidal zone-Referred sometimes as foreshore,which is area above water at low tide and under water at high tide
These are the possible genotype, B or O and the phenotype I can not find since I don’t know any of their characteristics
