answersLogoWhite

0

It depends on the isotope. But if we assume Ba137 , we can find the number of neutrons by subtracting the number of protons from the mass number

137-56=81

User Avatar

Wiki User

13y ago

What else can I help you with?

Continue Learning about Natural Sciences

What is a direct consequence of the number of protons and neutrons in an atom's nuceuls?

Number of proton = atom numberfor example:Hydrogen has 1 proton and its atom number is also 1Number of neutrons + number of protons = mass numberfor example:Hydrogen have 1 proton and and NO neutrons, so the mass number is 1Helium has 2 protons and and 2 neutrons, so the mass number is 4


An atom has 13 protons and an atomic mass of 27 How many neutrons does this atom have?

The atom in question has 13 protons, so is atomic number 13, which is Aluminium. Assuming that all of the atom's mass is formed from the protons and neutrons, and each of these have atomic mass 1, the number of neutrons is 27 - 13 = 14 neutrons. Almost all Aluminium is of this isotope.


How do you calculate the atomic mas based on the number of protons and neutrons of an atom?

To calculate the atomic mass of an atom, you would add the number of protons and neutrons together. Protons and neutrons each have a mass of approximately 1 atomic mass unit (amu). The sum of the protons and neutrons will give you the atomic mass of the atom in atomic mass units.


What is the mass number of an atom with 27 protons 33 neutrons and 27 electrons?

The mass number of an atom is the sum of its protons and neutrons. In this case, the atom has 27 protons and 33 neutrons, so the mass number would be 27 + 33 = 60.


How is mass number and atomic number the same?

They are not. Atomic number is the total number of protons in an atom. Mass number is the total number of protons and neutrons. The only isitope in which they are the same is Hydrogen-1 with 1 proton and no neutrons.

Related Questions

What is a direct consequence of the number of protons and neutrons in an atom's nuceuls?

Number of proton = atom numberfor example:Hydrogen has 1 proton and its atom number is also 1Number of neutrons + number of protons = mass numberfor example:Hydrogen have 1 proton and and NO neutrons, so the mass number is 1Helium has 2 protons and and 2 neutrons, so the mass number is 4


What is hydrogen's number of neutrons equals mass number - atomic number equals?

The number of neutrons in an atom can be calculated by subtracting the atomic number (number of protons) from the mass number. For hydrogen, the atomic number is 1 and the mass number is also 1. Therefore, the number of neutrons in hydrogen is 1 (mass number - atomic number = 1 - 1 = 0 neutrons).


Is the mass number of an atom equal to the atomic number?

Only if the atom is hydrogen-1! The mass number of the atom is equal to the sum of the numbers of protons, which is the same as the atomic number, plus the number of neutrons. The only non-radioactive atom without neutrons is hydrogen-1.


What does the atom of?

An atom has a nucleus composed of protons and usually neutrons as well (there is only one kind of atom which has no neutrons, which is the hydrogen 1 isotope) and it also has electrons surrounding the nucleus, with the same number of electrons as the number of protons in the neutrons.


A neutral atom must have the same number of neutrons and electron true or false?

FALSE!!!! A neutral atom must have the same number of protons and electrons. The number of neutrons can vary, to form isotopes. When the number of protons and electrons are different, they are no longer atoms but IONS. If we take hydrogen as an example, it forms three isotopes. #1 ; protium ; 1 proton, 0 neutrons and 1 electrons #2 ; deuterium ; 1 proton , 1 neutron and 1 electron #3 ; tritium ; 1 proton , 2 neutrons and 1 electron Notice the protons and electrons are the same number, but the number of neutrons varies, between isotopes.


An atom has 13 protons and an atomic mass of 27 How many neutrons does this atom have?

The atom in question has 13 protons, so is atomic number 13, which is Aluminium. Assuming that all of the atom's mass is formed from the protons and neutrons, and each of these have atomic mass 1, the number of neutrons is 27 - 13 = 14 neutrons. Almost all Aluminium is of this isotope.


How do you calculate the atomic mas based on the number of protons and neutrons of an atom?

To calculate the atomic mass of an atom, you would add the number of protons and neutrons together. Protons and neutrons each have a mass of approximately 1 atomic mass unit (amu). The sum of the protons and neutrons will give you the atomic mass of the atom in atomic mass units.


Must the number of electrons in an atom equal the number of neutrons?

No, the number of electrons in an atom does not need to equal the number of neutrons. The number of electrons in an atom is typically equal to the number of protons in order to maintain electrical neutrality, while the number of neutrons may vary, affecting the atom's stability and isotopic properties.


What is the relationship between istotopes mas number and neutrons?

atomic mass of an atom = number of neutrons + number of protons For example the Deuterium isotope of Hydrogen Atomic mass number = 2 Atomic number = 1 The atomic number is the same as number of protons, so the Deuterium isotope has 1 proton atomic mass of an atom = number of neutrons + number of protons 2 = n + 1 n = 1


What is the mass number of an atom with 27 protons 33 neutrons and 27 electrons?

The mass number of an atom is the sum of its protons and neutrons. In this case, the atom has 27 protons and 33 neutrons, so the mass number would be 27 + 33 = 60.


How is mass number and atomic number the same?

They are not. Atomic number is the total number of protons in an atom. Mass number is the total number of protons and neutrons. The only isitope in which they are the same is Hydrogen-1 with 1 proton and no neutrons.


How many neutrons are in the atom of Hydrogen?

The number of neutrons in a hydrogen atom will depend on which isotope of hydrogen we consider. Not all hydrogen atoms have the same number of neutrons. The vast majority of hydrogen atoms (over 99.98%) have no neutrons at all. Some have 1 (and this is called deuterium) and some have 2 (called tritium). These two isotopes occur naturally but are rare, as can be seen.To determine the number of neutrons in an atom, you must use the mass number, which is the sum of the number of protons and the number of neutrons. Since the atomic number of the element (for H, the atomic number is 1) tells you the number of protons, you can find the number neutrons by subtraction.See the Related Questions to the left for how to count the number of protons, neutrons and electrons in any atom of any element.