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If an element has a mass number of 4 and an atomic number of 2 how many neutrons does the element have?
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If you know the atomic mass and atomic number of a element how do you determine the number of neutrons in the element?
Number of Nuetrons = Mass Number - Atomic Number E.g. Einsteinium (Mass Number) 252 - (Atomic Number) 99 = 153 Neutrons Or just look at how many protons and neutrons are in… it.
Atomic number minus number of protons you don't
To find the number of neutrons simply subtract the atomic number from the atomic mass. In this case there are two neutrons.
The 'standard' hydrogen atom has atomic number 1, atomic mass 1, no neutrons. Although there are 2 other isotopes of hydrogen: - (cant confirm name) which has atomic… mass 2 and 1 neutron. - (cant confirm name) has atomic mass of 3 and 1 neutron. All isotopes have atomic number 1.
What is the atomic number and the mass number of an atom of an element with 5 protons and 6 neutrons?
The atomic number of an element is the number of protons it has in its nucleus. In this case, it would be 5. The atomic weight is the sum of the protons and neutrons in its …nucleus. In this case, it would be 11.
If the atomic number of an element is 9 and the mass number is 19 how many neutrons does the atom have?
atomic number = number of protons mass number = # protons + # neutrons # neutrons = mass # - atomic # = 19 - 9 10 neutrons
This question can not be properly answered unless a specific isotope of the element is specified. The number of neutrons is always equal to the mass number of the isotope minu…s the atomic number of the element.
Yes. If you subtract the atomic number from the atomic mass you get the number of neutrons.
30. The Atomic mass is essentially the protons + neutrons. The Atomic number is the protons. Or the neutrons. Or even the electrons. With the exception of ions and isotopes, t…hose numbers are all the same.
31 - 15 = 16 neutrons
8. Mass number is the number of protons and neutrons in an atomic nucleus.
The number of neutrons in the nucleus of an atom is always the difference between the mass number of the atom and the atomic number of the atom. Therefore, in this instance, t…here are (155 - 63) or 92 neutrons in the atom.
The sum of the protons and neutrons in the atoms of an isotope is called the mass number of that isotope.