An elements atomic number gives us its number of protons. Referencing the Periodic Table, we find the element with atomic number 69 is thulium. Thus, thulium has 69 protons.
50 and 69
The element tin, with symbol Sn and atomic number 50, typically has 50 protons. Considering protons + neutrons = atomic mass number, if there were 50 protons and 69 neutrons, the total would be 50 + 69 = 119, which is not the atomic mass of tin (approximately 119).
The element with 45 protons is Rhodium which has the chemical symbol Rh. Rhodium is a transition metal in Group 9, Period 5 of the Periodic Table. Rhodium has 45 electrons in 5 shells with 1 electron in the outer shell.
Protons are protons, no matter what element they are in.
Indium: 49 protons/electrons, 66 neutronsTin: 50 protons/electrons, 69 neutronsAntimony: 51 protons/electrons, 71 neutrons
what element contains 16 protons? what element contains 10 protons?
Each chemical element has a specific number of protons; the number of protons is equal to atomic number of the element.
69 protons, 69 electrons Thulium-169 isotope has 100 neutrons
The chemical element with 33 protons is: arsenic (As).
Radon (Rn) has the most protons of any element in Group 0 (18) with 86 protons. However, if or when Ununoctium is officially confirmed, that will become the element with most protons in that family, with 118 protons.
All atoms of the same element have the same number of protons. Atoms of different elements have different numbers of protons. The number of protons determines the element.
As asked, there is not enough information in your question to answer it as there are no "following" from which the choice of "Which of the following is the correct identity..." can be made.However, from the given information:Elements are electrically neutral, so if it has 50 electrons, it must also have 50 protons; and the number of protons gives the atomic number of the element - the element with atomic number 50 is Tin (Sn).The number of neutrons can vary which isotope it is (eg Deuterium is Hydrogen with 1 neutron, Tritium is Hydrogen with 2 neutrons).The number of neutrons and protons together in the nucleus gives the relative atomic weight of the element; tin has a relative atomic weight of 119 which less the 50 protons leaves 69 neutrons, confirming the element.Now you know the element, you can choose "which of the following" (which were not included in your question) is the right answer; or even better, re-write your question to something like "which element has 50 electrons and 69 protons" as opposed to copying your teacher's question (and possibly committing copyright infringement, aka piracy).