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Every chlorine atom has 17 protons; 17 is the atomic number of chlorine. However, chlorine has two isotopes that are stable against radioactive decay. These have mass numbers of 35 and 37, which have 18 and 20 neutrons respectively.

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12y ago
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10y ago

This depends because chlorine exists as different isotopes. The two principal stable isotopes are chlorine-35, 35Cl (75.78%) and chlorine-37, 37Cl (24.22%). An atom of 35Cl would have 18 neutrons while 37Cl would have 20 neutrons.

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7y ago

Neutrons = 18. Protons = 17 to figure out the # of neutrons to the mass-protons which is 18
A chlorine atom in ground state has 17 electrons. (17 protons, 18 neutrons)

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12y ago

In a chlorine atom: Protons=17 Neutrons=18 Electrons=17

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10y ago

The number of protons in chlorine is 17 and the number of neutrons is 18 since the Atomic Mass of chlorine is 35

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6y ago

Chlorine has 17 protons and 18, 19, 20 neutrons (depending on isotope).

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14y ago

17p and 18n or 20n

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10y ago

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14y ago

18

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Q: How many neutrons are in the atom chlorine?
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Related questions

How many neutrons does a Chlorine atom have in its nucleus?

18


How many neutrons does a chlorine atom have in its nucleus in words?

The number of neutrons is different for each isotope. Chlorine-35 has eighteen neutrons. Chlorine-36 has nineteen neutrons. Chlorine-37 has twenty neutrons. ....... etc.


How many neutrons are found in one atom of chlorine?

20


How many protons and neutrons are there in chlorine?

Chlorine has an Atom number of 17 and atom mass of 35.45. So atom mass - atom number gives you 18.45


How many neutrons are in the nucleus of a Chlorine atom?

18.5 neutrons Neutrons can not be a fraction. Must be a whole number. Chlorine has 18 neutrons


A chlorine atom with 18 neutrons is what element?

A chlorine atoms is always a molecule of chlorine, irrespective of the number of neutrons it may have.


How many neutrons and electrons in chlorine?

There are two main isotopes of chlorine. Every chlorine atom has 17 electrons where there are 18 and 20 neutrons in chlorine-35 and chlorine-37 respectively.


Does an atom of chlorine have 17 protons and 18 neutrons?

Yes, the main isotope of chlorine has 17 protons and 18 neutrons.


How many neutrons and electrons are in the element chlorine?

Each chlorine atom contains 17 electrons, which offset the electric charge of the 17 protons in the nucleus of each atom, as indicated by the fact that the atomic number of chlorine is 17. The number of neutrons per atom varies, however, depending on which isotope of chlorine is examined. There are two naturally occurring and radioactively stable isotopes of chlorine, with mass numbers of 35 and 37, and there are many other radioactive isotopes. The number of neutrons in an atom of a particular isotope may be found by subtracting 17, the atomic number of chlorine, from the mass number.


What is the mass of a potassium atom with 20 neutrons?

Mass number = No. of protons + No. of neutrons = 19 + 20 = 39


Where are the electron on a chlorine atom?

Outside the nucleus (where the protons and neutrons are) in a "cloud".


Whats the charge for neutrons in chlorine?

a neutron is neutral in any atom