## What element has 19 protons 19 electrons?

potassium
So if you look for potassium (symbol K in the periodic table), you will find that it has the atomic number of 19. This tells you that potassium has 19 protons and – since the number of protons is the same as the number of electrons- also 19 electrons.

### How many electrons does 19 fluorine have?

There are 9 electrons.

What is the mass number of an element that has 19 protons 19 electrons and 19 neutrons?

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. Hence, number of neutrons is 39 – 19 which is 20. Potassium-40 – It has 19 protons and atomic mass is 40.

How many neutrons are there in F 19?

The 19F is almost 100% abundant. Because in each fluorine nucleus, there are necessarily 9 protons , why necessarily?, there must be 10 neutrons, neutral massive particles, in the fluorine nucleus. Note that 19F is 100% spin active (I=1/2) , it can be regularly used in NMR spectroscopy .

## Which element has 19 protons 19 electrons and 20 neutrons?

The element of potassium has the symbol K. The nucleus of an atom of potassium contains 19 protons and 20 neutrons.

### What is the atomic mass number of an element that has 19 protons 19 electrons and 20 neutrons?

The element potassium’s atomic number is 19. Its relative atomic mass is 39.098.

What is the atomic number of fluorine-19?

Answer and Explanation: Fluorine-19 has an atomic number of 9. The atomic number is equal to the number of protons in an element and can be identified on the periodic table….

What does the number 19 represent in fluorine?

1 Answer. This isotope of fluorine has 9 protons, 9 electrons and 10 neutrons.

## What is the atomic number of 19 protons 19 electrons and 20 neutrons?

### What’s the mass number of an atom that contains 19 protons 19 electrons and 20 neutrons?

Hence, mass number is the sum of total number of protons and neutrons present in an atom. For example, mass of an element consisting of 19 protons and 20 neutrons is calculated as follows. Therefore, we can conclude that mass number of the given element is 39.

What is the atomic number of fluorine 19?

What is the atomic mass of F 19?

18.998403

ChEBI Name fluorine-19 atom
Definition The stable isotope of fluorine with relative atomic mass 18.998403 and nuclear spin 1/2.
Stars This entity has been manually annotated by the ChEBI Team.
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