1)an atom has a mass number of 27 and 14 neutrons. what is the atomic number of this atom?
2)The atomic number of fluorine is 9. What is the mass # of a fluorine atom with 8 neutrons?
the number of protons=massnumber-neutrons
the mass number=protons+neutrons
To find the atomic number, we need to understand that the atomic number represents the number of protons in an atom.
1) In this case, you are given the mass number of the atom (27) and the number of neutrons (14).
To find the atomic number, which is the number of protons, you can use the equation:
mass number = number of protons + number of neutrons
Re-arranging the equation:
number of protons = mass number - number of neutrons
Plugging in the given values:
number of protons = 27 - 14
number of protons = 13
Therefore, the atomic number of this atom is 13.
2) You are given the atomic number of fluorine as 9 and the number of neutrons as 8.
To find the mass number, which is the sum of protons and neutrons, you can use the equation:
mass number = atomic number + number of neutrons
Plugging in the given values:
mass number = 9 + 8
mass number = 17
Therefore, the mass number of a fluorine atom with 8 neutrons is 17.
1) To find the atomic number of an atom, you need to subtract the number of neutrons from the mass number. In this case, the atom has a mass number of 27 and 14 neutrons.
So, the atomic number can be calculated as:
Atomic number = Mass number - Number of neutrons
Atomic number = 27 - 14
Atomic number = 13
Therefore, the atomic number of this atom is 13.
2) The atomic number of fluorine is 9. To find the mass number of a fluorine atom with 8 neutrons, you need to add the number of protons (atomic number) and neutrons together.
So, the mass number can be calculated as:
Mass number = Atomic number + Number of neutrons
Mass number = 9 + 8
Mass number = 17
Therefore, the mass number of a fluorine atom with 8 neutrons is 17.