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The mass number, the number that follows the hyphen at the end of an element name, is the sum of the atomic number of the element and the number of neutrons in each atom of the isotope specified by mass number. The atomic number of potassium is 19; therefore, potassium-39 contains (39 - 19) or 20 neutrons.
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∙ 11y ago
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∙ 14y agoThe number of protons in an atom is the definition of atomic number. For potassium, this is 19. The number of neutrons may be found by subtracting the atomic number from the mass number; in this instance 39 - 19 = 20 neutrons.
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∙ 13y ago19 protons
20 neutrons
19 electrons (assuming it is not ionized)
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∙ 13y agoPotassium's atomic number is 19. Thus, to be electrically neutral, it must have 19 protons and 19 electrons. 39K has 39 - 19 = 20 neutrons.
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∙ 11y ago19 protons and 19 electrons
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∙ 11y agoEvery potassium atom has 19 protons.
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∙ 13y ago19
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How many electrons and neutrons are in potassium?
Potassium (K) Has the same number of electrons as protons therefore it has 19 electrons. To find the number of neutrons you take the mass of the element minus the number of protons so 39-19=20. so there are 20 neutrons in potassium.
What atoms has 39 protons?
The atomic number of an element tells us that atom's number of protons. If the atom is neutral, its number of protons is going to equal its number of electrons. Thus, we need only find the element with the atomic number of 39, which is yttrium.
How many protons and nutrons does potassium have?
Potassium have th atomic number of 19 this means it has 19 protons in its "core" and in atoms the number of electrons are always equal to the number of protons hence also 19. the number of neutrons however vary dependent on witch potassium isotope it is the average for potassium is however 20 in potassium 39
What is the mass number and symbol of an atom that contains 19 protons 19 electrons and 20 neutrons?
The mass number is always the sum of the numbers of protons and neutrons and therefore is 39 in this instance. The atomic number of 19 shows that the atom is of the element potassium, and its symbol is 39K.
How many protons does patassium have?
A potassium atom has 19 protons.An uncharged atom therefore has 19 electrons, but in solution many potassium atoms exist as ions (K+), with 18 electrons.
How many protons electrons and neutrons are in potassium-39?
19 protons 19 electrons 20 neutrons
How many electrons and neutrons are in potassium?
Potassium (K) Has the same number of electrons as protons therefore it has 19 electrons. To find the number of neutrons you take the mass of the element minus the number of protons so 39-19=20. so there are 20 neutrons in potassium.
How many protons are in potassium?
There are 19 protons in the potassium atom.
How many protons electrons and neutrons in the element potassium?
The atomic number of potassium is 19. So there are 19 protons and 19 electrons. The number of neutrons depends on the isotope. The most stable isotope of potassium (K-39) has 20 neutrons (39 - 19 = 20).
How many protons and electrons do potassium have?
19 protons.20 neutrons.18 electrons.One less electron that has been donation to form the potassium ion.K +----------------charge on the cation
What atoms has 39 protons?
The atomic number of an element tells us that atom's number of protons. If the atom is neutral, its number of protons is going to equal its number of electrons. Thus, we need only find the element with the atomic number of 39, which is yttrium.
How many protons and nutrons does potassium have?
Potassium have th atomic number of 19 this means it has 19 protons in its "core" and in atoms the number of electrons are always equal to the number of protons hence also 19. the number of neutrons however vary dependent on witch potassium isotope it is the average for potassium is however 20 in potassium 39
What is the mass number and symbol of an atom that contains 19 protons 19 electrons and 20 neutrons?
The mass number is always the sum of the numbers of protons and neutrons and therefore is 39 in this instance. The atomic number of 19 shows that the atom is of the element potassium, and its symbol is 39K.
How many electrons and neutrons does potassium has?
Potassium's atomic number is 19. That means that it must have 19 protons and 19 electrons to be electrically neutral. 39K is potassium's most common isotope, with 39 - 19 = 20 neutrons.
How many protons is in yllrium?
39 protons
What is the description of K19?
Potassium, K, has an atomic number of 19, and this shows the number of protons in the nuceus of each atom. the mosut common isotope is potassium-39 with 19 protons and 20 neutrons
How many protons does a potasium atom have?
Potassium has 19 protons.
