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ONLY the K+ ion (not element) has 19 protons and 18 electrons.
The isotopic ion with 21 neutrons must be K+-40 , the most rare potassium-ion (0.01%) out of three possibles, the other isotopes are: K+-39 (93%) and 7% is K+-41
Explanation:
39, 40 and 41 are the mass numbers of the 3 naturally occurring potassium isotopes.
Keep in mind that:
1. an element is always neutrally charged, so the number of protons (positives, + ) equals the number of electrons (negatives, - )
2. the number of neutrons depends on the 'mass number' of the one particular isotope of that element and that the number of protons + neutrons is the mass number
Beulah Skiles
HAILEIGH VONSTOCKHAU...
its potassium
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How many protons neutrons and electrons in 40 Ar?
18 protons 18 electrons 22 neutrons
What element has 18 protons?
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
What element has 18 protons 20 nuetrons and 18 electrons What is its atomic number?
The atomic number of am element is determined by its number of either electrons or protons, hence here, it is 18. Therefore the element must be argon which the isotope has mass number 38, as there are 18 protons and 20 neutrons.
How many protons and neutrons does Neon-18 have?
Ten protons, ten electrons and 8 neutrons are there in Ne-18.
What is the symbolic notation of an element having 8 protons 8 electrons and 10 neutrons?
18/8 O
How many protons neutrons and electrons in 40 Ar?
18 protons 18 electrons 22 neutrons
How many protons nutrons and electrons does argon have?
18 protons and 22 neutrons in the most commonly occurring isotope argon-40. In argon-36 there are 18 neutrons but this isotope is only present in nature at 0.34%
How many electrons does an element have if it has 17 protons and 18 neutrons?
i dont know, i hate chemistry it sucks! i wanna no 'if an element has 17 protons, how many electrons are there?' sorry i didnt no the answer
How many neutrons and electrons in the element argon?
Argon has 18 protons, 18 electrons. The most stable isotope of argon (Ar-40) has 22 neutrons.
How many protons neutrons and electrons are in Ar?
18 protons and electrons and 22 neutrons.
How man protons neutrons and electrons does 35Cl- have?
The isotope chlorine-35 has 17 protons and 18 neutrons.
What element has 18 neutrons in its atom?
There are several. However, Chlorine is one. Chlorine-35 has 17 protons, 18 neutrons and 17 electrons in its isotopic atom. However, Chlorine-37 has 17 protons, 20 neutrons and 17 electrons in its isotopic atom.
How many protons and electrons and neutrons does the element chloride have?
Protons=17 Neutrons depend on isotope but most common is 18, and electrons depend on compound however by it self cl has 17 but it steals an electron from other elements to get 18
What element has 18 protons?
The element that has 18 neutrons is ARGON... Wow, why didn't look in a periodic table? Is easier ask here??? Actually, 18 is argon's atomic number, and it also has 18 protons and electrons.. but it has 22 neutrons. The number of neutrons = mass number - number of protons. Soo, the answer is Chlorine, 17 protons, 17 electrons and 18 neutrons
What element has 18 protons 20 nuetrons and 18 electrons What is its atomic number?
The atomic number of am element is determined by its number of either electrons or protons, hence here, it is 18. Therefore the element must be argon which the isotope has mass number 38, as there are 18 protons and 20 neutrons.
How many protons and neutrons does Neon-18 have?
Ten protons, ten electrons and 8 neutrons are there in Ne-18.
How many neutrons are in the atom of oxygen -18?
8
