Strontium is a mixture of 4 stable isotopes: 84, 86, 87, and 88. Since strontium has 38 protons these isotopes have 46, 48, 49, and 50 neutrons respectively.
2-3 neutrons
50
Number of Neutrons = Mass number - atomic number = 90 - 38 = 52
strontium (which the atomic number is not 85 its 38) has 38 protons and 50 neutrons... hope this helps!
38There can be multiple atoms that have the same number of neutrons, these are called isotopes. The most common isotope of strontium (one of four stable isotopes), is strontium 88. This means that the number of protons and neutrons together in that isotope is 88. And since all atoms of strontium (regardless of their isotope) have 38 protons, that means that the most common isotope of strontium has 50 neutrons.
Sr-90.
87.62 Wrong, that is the Atomic Mass, not the Mass Number. The Mass Number is the whole number of protons plus neutrons for the specific isotope. For example, Sr-88 is a stable isotope, with 88-the atomic Number 38 being the number of neutrons. Complicating the matter, Sr 86 and Sr 87 are also stable but would have mass numbers of 48 and 49.
All molecules of Strontium have the same number of protons, 38.
Number of Neutrons = Mass number - atomic number = 90 - 38 = 52
strontium (which the atomic number is not 85 its 38) has 38 protons and 50 neutrons... hope this helps!
38 protons. If it is neutral, it will also have 38 electrons. The number of neutrons obviously varies, depending on the isotope.
38There can be multiple atoms that have the same number of neutrons, these are called isotopes. The most common isotope of strontium (one of four stable isotopes), is strontium 88. This means that the number of protons and neutrons together in that isotope is 88. And since all atoms of strontium (regardless of their isotope) have 38 protons, that means that the most common isotope of strontium has 50 neutrons.
Stronium with 31 Protons and 37 Neutrons
Sr-90.
Atomic mass is the sum of protons plus neutrons, while atomic number counts only the protons. So subtract atomic number from mass number to get neutron number. For example, Strontium (Sr) has atomic number 38. So Sr-90 holds 90 - 38 = 52 neutrons in its nucleus.
Strontium (Sr) is number 38
strontium
Strontium and iodine would form ionic bonds in a compound with formula SrI2.
87.62 Wrong, that is the Atomic Mass, not the Mass Number. The Mass Number is the whole number of protons plus neutrons for the specific isotope. For example, Sr-88 is a stable isotope, with 88-the atomic Number 38 being the number of neutrons. Complicating the matter, Sr 86 and Sr 87 are also stable but would have mass numbers of 48 and 49.