Mass number = number of protons + number of neutrons
The number of protons in the nucleus of an atom of phosphorus is equal to the atomic number of phosphorus, which is 15. If an atom of phosphorus has 17 neutrons, then the mass number would be 15 protons + 17 neutrons = 32. Thus, the correct answer choice here is B.
Duralumin. it mixed from copper and magnesium or aluminium. it use for flight
The layer that we live in is the Troposphere.
Hope this answer is correct.
The nitrogen atom in NH3 is sp3 hybridized. ... In NH3 molecule, three of the sp3 orbitals are used to formbonds to the three hydrogen atoms and the fourth sp3 orbital is used to hold the lone pair. and is sometimes called a non-bonding pair.
That if we don’t separate our selves hundreds and thousands of people will die but if we stay apart it will resolve sooner
