An element's number of protons is the same as its atomic number. Thus, an atom with 51 protons has the atomic number 51. By looking up this element on the Periodic Table, one finds that it is antimony.
The isotope of zirconim, 91Zr, has 51 neutrons. 40Zr(91) is a stable isotope with 51 neutrons
Its atomic number is 40, and its mean Atomic Mass is 91.22.
91.(22) - 40 = 51 neutrons
41Nb(92) is an unstable isotope with 51 neutrons
Nb = Niobium
Atomic number is 41, 92 - 41 = 51 neutrons
In the most common isotope, Antimony-122, there are 71 neutrons.
The number of neutrons is not sufficient information to identify an element.
You look up antimony. You discover its symbol is SB. You look on your periodic table. You come to the symbol SB. You see that it is number 51. You know that is also the number of protons in the atom. You know that 122 is the atomic weight. You know that the Atomic Weight mainly comes from the weight of the neutrons and protons. You know that when you have the atomic weight you can subtract the atomic number from the atomic weight and get the number of neutrons.
Antimony is the element that has 51 protons. Its atomic number is 51.
Zirconium
Isotopes as 88Sr, 89Y, 90Zr.
Antimony (symbol Sb)
Isotopes as 91Zr.
Zirconium
The isotope of zirconim, 91Zr, has 51 neutrons. In order to solve this problem, one must know that an element's atomic weight is the average of its number of protons and neutrons (only neutrons are variable). Since the atomic number is the number of protons, the atomic number subtracted from the atomic weight gives the number of neutrons. An element in period 5 that has this many neutrons is found to be zirconium (the isotope 91Zr).
It's Zirconium.
The element Iodine has 53 protons, 53 electrons, and 74 neutrons
23 Protons and 28 Neutrons. The atomic number is always equal to the number of protons in an element. The element is vanadium (symbol V). Any atom with 23 protons is be vanadium, but some vanadium atoms will have more or less than 28 neutrons. The mass number is the sum of the number of protons and neutrons together, and this can vary for the same element (called isotopes). To find the number of neutrons, just subract the atomic number from the mass number.
28 neutrons
51
The isotope of zirconim, 91Zr, has 51 neutrons. In order to solve this problem, one must know that an element's atomic weight is the average of its number of protons and neutrons (only neutrons are variable). Since the atomic number is the number of protons, the atomic number subtracted from the atomic weight gives the number of neutrons. An element in period 5 that has this many neutrons is found to be zirconium (the isotope 91Zr).
It's Zirconium.
Sb Antimony
The element Iodine has 53 protons, 53 electrons, and 74 neutrons
Period 10? Check the spelling !
protons: 51 electrons: 51 neutrons:70
23 Protons and 28 Neutrons. The atomic number is always equal to the number of protons in an element. The element is vanadium (symbol V). Any atom with 23 protons is be vanadium, but some vanadium atoms will have more or less than 28 neutrons. The mass number is the sum of the number of protons and neutrons together, and this can vary for the same element (called isotopes). To find the number of neutrons, just subract the atomic number from the mass number.
28 neutrons
neutrons
There are 118 neutrons in the element gold.
51 protons, 51 electrons and 70 neutrons (in Antimony-171 isotope)