Mass number and atomic number space two vital pieces the information around a nucleus.

You are watching: How many protons and neutrons does chlorine have

A nucleus can be represented using the symbol notation:

\<_Z^A\textrmX\>

Where:

A is the mass numberZ is the atom numberX is the chemical symbol the the elementA - Z = variety of neutrons N

For example, chlorine (Cl) deserve to be shown as: Carbon has three isotopes: \(_6^12\textrmC\), \(_6^13\textrmC\) and \(_6^14\textrmC\). They every mmsanotherstage2019.comntain 6 protons, however six, seven and eight neutrons respectively.

\(_7^14\textrmN\) and \(_6^14\textrmC\) space not isotopes.

They have the same mass number, A, yet different atomic number, Z, and different chemical symbol - they are not the very same element.

If the variety of protons changes, climate it is a various element.

Question

How numerous protons does \(_6^14\textrmC\) mmsanotherstage2019.comntain?

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The atomic number is 6 for this reason \(_6^14\textrmC\) mmsanotherstage2019.comntains 6 protons.

Question

How plenty of neutrons go \(_6^14\textrmC\) mmsanotherstage2019.comntain?

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Number of neutrons = massive number - atomic number = 14 - 6 = 8 neutrons.

Question

Write under the number of particles in the adhering to nuclei:

\<_30^64\textrmZn\>

\<_92^238\textrmU\>

\<_1^3\textrmH\>

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\<_30^64\textrmZn\>

Number of protons Z = 30Number of protons + neutrons A = 64Number of neutrons N = 64 - 30 = 34Since this is a nucleus there space no electrons

There room 30 protons and 34 neutrons.

\<_92^238\textrmU\>

Number of protons Z = 92Number of protons + neutrons A = 238Number of neutron N = 238 - 92 = 146Since this is a cell core there room no electrons

There room 92 protons and 146 neutrons.

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\<_1^3\textrmH\>

Number of proton Z = 1Number of proton + neutrons A = 3Number of neutrons N = 3 - 1 = 2Since this is a cell nucleus there room no electrons

There is 1 proton and 2 neutrons.

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## More Guides

The structure of the nucleus - CCEA