An isotope of indium has 77 protons and 115 neutrons. What is the mass number of this isotope
114.82
isotope
All the isotopes of a chemical element have the same atomic number, number of protons and number of neutrons.
Isotopes have the same number of protons but different number of neutrons. Carbon has several isotopes: carbon-12, carbon-13, carbon-14, etc. They all have 6 protons but their mass and physical properties change due to the number of neutron.
The symbol is Ba. The number of neutrons equal the number of protons.
The number of protons and neutrons is what determines the mass of an isotope. Even though isotopes of a particular element have the same number of protons, but a different number of neutrons, which causes their mass to be different.
The answer you are looking for is "isotopes" HOWEVER, please note you CAN NOT HAVE 2 elements with the same number of PROTONS. This is because the number of protons DEFINES an element. Isotopes are the SAME element but with differing numbers of neutrons.
isotope
The number of protons (and electrons in a neutral atom) is identical. The number of neutrons is different for each isotope.
All the isotopes of a chemical element have the same atomic number, number of protons and number of neutrons.
Isotopes have the same number of protons but different number of neutrons. Carbon has several isotopes: carbon-12, carbon-13, carbon-14, etc. They all have 6 protons but their mass and physical properties change due to the number of neutron.
Number of neutrons = Atomic mass of an isotope - Atomic number of the element; the atomic number of Lr is 103. Lawrencium has many isotopes and each isotope has a different number of neutrons.
Isotopes involve different atomic masses. It is sum of number of protons and neutrons.
The atomic mass equals neutrons and protons. This is true in non isotopes as well.
Isotopes are atoms with a different number of neutrons but with the same number of protons.
Francium has 87 protons; the number of neutrons is different for each isotope and francium has approx. 40 isotopes and isomers. Number of neutrons = Atomic mass of the isotope - 87
All the isotopes of uranium contain 92 protons; the number of neutrons is variable for each isotope: Number of neutrons = Atomic weight of the given isotope - 92
The symbol is Ba. The number of neutrons equal the number of protons.