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An atom of Potassium has a mass number of 40 and an atomic number of 19.how many protons does it have?
The atomic number is the number of protons: 19.number of neutrons = mass number - atomic number = 21.The number of electrons is normally the same as the number of protons: 19
What is the total number of protons in the nucleus of a potassium 42 isotope?
The atomic number of potassium is 19. This means that there are 19 protons in every potassium atom, regardless of isotope.
What is the atomic and mass number of potassium?
The atomic number is 19 and the mass number of its most abundant isotope K-39 is 39 (19 protons + 20 neutrons) while the mass of that isotope is 38.96371 a.m.u.The relative atomic mass of the element potassium, K, is 39.10 g/mole.
What is nucleus of potassium?
The nucleus of potassium is the central core of the potassium atom consisting of protons and neutrons. It has 19 protons, making it the atomic number of potassium, and the number of neutrons can vary depending on the isotope of potassium.
How many neutrons does potassium-39 have?
Potassium-39 has 20 neutrons. This is because the atomic number of potassium is 19, which represents the number of protons in its nucleus. Subtracting the atomic number from the atomic mass gives you the number of neutrons.
How many protons are in pottasium?
Pottasium is a meta element. Atomic number of it is 19.
The element potassium has an atomic number of 19 this means that potassium?
The atomic number indicates the number of protons (19) and electrons (19).
Do all potassium K have the same atomic number?
Yes. The atomic number is the number of protons in an atom. Potassium always has 19 protons, and so its atomic number is 19. As soon as there is a change in the number of protons, then the element is different.
Which element has19 protons in its nucleus?
Potassium - (K) Potassium's atomic number is 19, which is also the number of protons it has.
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.
An atom of Potassium has a mass number of 40 and an atomic number of 19.how many protons does it have?
The atomic number is the number of protons: 19.number of neutrons = mass number - atomic number = 21.The number of electrons is normally the same as the number of protons: 19
What is the atomic number and mass number for potassium?
The atomic number of potassium is 19. The mass number is the number of protons plus the number of neutrons. The three natural isotopes of potassium have mass numbers of 39, 40, 41.
Why is the atomic number 19 for potassium?
because potassium contains 19 protons
How many protons does potassium 39 have?
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.
What is the atomic number for potassium atom?
Only elements have a particular (unique) atomic number. Potassium (K) has 19 and chlorine (Cl) has 17 as atomic number (= proton number)
How many electrons and protons are there in potassium?
A potassium atom has 19 protons and 19 electrons. This is because the number of protons in an atom is equal to its atomic number, which for potassium is 19. Electrons in a neutral atom are equal to the number of protons.
How many protons neutrons and electrons are in k40?
K always has 19 protons, because that is what defines it as an element.40, the atomic mass is the sum of protons and neutrons. So if you subtract the number of protons from the atomic mass, you get the number of neutrons.40-19=21 neutrons
