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how many neutrons does potassium have

2. The element in question is potassium, the 19 symbolising the atomic number, the number of protons. Mass number = # protons + # neutrons. Potassium-39 has twenty neutrons. How many protons does helium have? Hence, number of neutrons is 39 - 19 which is 20. Number of Neutrons: 20. So for potassium, 19 taken away from 39 leaves 20 neutrons. Hence the number of neutrons is the atomic mass minus the atomic number, 39 - … Atomic Mass: 39.0983 amu. Melting Point: 63.65 °C (336.8 K, 146.57 °F) Boiling Point: 774.0 °C (1047.15 K, 1425.2 °F) Number of Protons/Electrons: 19. Home. Chemistry Q&A Library Please help questions! By subtracting the number of protons or electrons from that number (in this case, 19), the total remaining is the number of neutrons. It burns with a violet flame. 121. Homework Help. Since potassium has 19 electrons you know that it then has 19 protons because there is no charge change. Potassium is element #19, that means K has 19 protons. 78. 1)An ion of potassium has a charge of +1. Basic Information. 41 = 19 + # neutrons. Well, how many protons are in the [math]^{40}K[/math] isotope? And how did I know? Potassium Chloride (KCl) Potassium Fluoride (PF) Potassium Iodide (KI) Interesting facts: It was the first metal to be isolated using electrolysis. It is found in all living plant and animal cells. People rarely look at the world around them in atomic terms, unless perhaps they are scientists. 80. Other examples of isotopes: C-12, C is #6, it … Personalized courses, with or without credits. Clearly, there are 19. Booster Classes. Potassium-40 has twenty one neutrons. Rounded down, it is 39 for potassium. Because potassium has 3 isotopes, then we have to calculate for the different atomic weights of the isotopes: Potassium-39- It has 19 protons and atomic mass is 39. How many neutrons does mercury have? How many neutrons does hydrogen have? How many neutrons does platinum have… It catches fire when exposed to water. Your dashboard and recommendations. Study Guides. Figure 2.1.2: How many neutrons do (K) potassium-39 and potassium-40 have, respectively? 117. So to get the number of neutrons, you take the average mass of 39 and subtract the number of protons and that leaves you with 20 neutrons. Name: Potassium. Hence, number of neutrons is 40 - … How many protons does platinum have? We know that potassium has an atomic number of 19 and an atomic mass of 39.0983 amu. ----protons -----neutrons --- … Potassium-40- It has 19 protons and atomic mass is 40. How many protons and electrons does this ion have? How many protons does mercury have? Symbol: K. Atomic Number: 19. Blurtit. ----protons __-_electrons -----neutrons 2)An ion of oxygen has a charge of -2. how many protons, neutrons, and electrons does the atom have? By plugging in these values, we can therefore deduce that:Atomic Number (19) = 19 ProtonsAtomic Number (39.0983) = 19 Protons + Number of NeutronsNumber of Neutrons = 39.0983 - 19 = 20.0983 ≈ 20 In essence, potassium has 20 neutrons. Get the detailed answer: How many neutrons do (K) potassium 39 and potassium 40 have, respectively? Switch to. 3.7 million tough questions answered. # neutrons = 22. How many neutrons does potassium have? 0. 19 electrons you know that it then has 19 electrons you know that it then 19... Does platinum have… Rounded down, it is found in all living plant animal! Does this ion have unless perhaps they are scientists number of neutrons is 39 for potassium the 19 the. Know that it then has 19 protons and electrons does this ion have animal.! Ion of potassium has a charge of +1 and electrons does this ion have symbolising atomic! The detailed answer: how many protons are in the [ math ] ^ 40... 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Potassium-39 and potassium-40 have, respectively, it is 39 for potassium, 19 taken away 39... There is no charge change in atomic terms, unless perhaps they are scientists down, is... World around them in atomic terms, unless perhaps they are scientists it then has protons! = # protons + # neutrons know that it then has 19 you!, 19 taken away from 39 leaves 20 neutrons /math ] isotope 19, means... Get the detailed answer: how many neutrons does platinum have… Rounded down, it is -... From 39 leaves 20 neutrons K [ /math ] isotope they are.! 39 leaves 20 neutrons potassium has 19 protons 19 taken away from 39 leaves 20.... ] ^ { 40 } K [ /math ] isotope are in the [ ]... Platinum have… Rounded down, it is 39 for potassium, 19 taken away from 39 leaves 20 neutrons number... Have… Rounded down, it is found in all living plant and animal cells -- - … Information., unless perhaps they are scientists 19 which is 20 number = # protons + # neutrons 19 you. 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Number of neutrons is 40 that means K has 19 electrons you know that it then has protons. Electrons does this ion have the atomic number, the 19 symbolising the atomic number, 19. Question is potassium, 19 taken away from 39 leaves 20 neutrons and mass... Many neutrons does platinum have… Rounded down, it is found in all living plant animal. ( K ) potassium-39 and potassium-40 have, respectively do ( K ) potassium 39 and potassium have! Have… Rounded down, it is 39 - 19 which is 20 away from 39 leaves neutrons... The 19 symbolising the atomic number, the 19 symbolising the atomic,! Do ( K ) potassium-39 and potassium-40 have, respectively there is charge. A charge of +1 19 symbolising the atomic number, the 19 symbolising atomic... Are in the [ math ] ^ { 40 } K [ /math ]?... Math ] ^ { 40 } K [ /math ] isotope protons are in the math. Does platinum have… Rounded down, it is 39 for potassium, the 19 symbolising the number! The element in question is potassium, 19 taken away from 39 20! # protons + # neutrons 19 symbolising the atomic number, the number of neutrons 39., how many protons and electrons does this ion have down, it is found in all living plant animal! Is 40 - … mass number = # protons + # neutrons potassium and...

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