Mass number and atomic number space two necessary pieces the information about a nucleus.

You are watching: How many neutrons are in cl

A nucleus have the right to be represented using the symbol notation:

<_Z^A extrmX>

Where:

A is the massive numberZ is the atom numberX is the chemistry symbol that the elementA - Z = number of neutrons N

For example, chlorine (Cl) have the right to be shown as:

Carbon has three isotopes: (_6^12 extrmC), (_6^13 extrmC) and (_6^14 extrmC). They every centregalilee.comntain six protons, but six, seven and also eight neutron respectively.

(_7^14 extrmN) and also (_6^14 extrmC) are not isotopes.

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

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

Question

How plenty of protons go (_6^14 extrmC) centregalilee.comntain?

up

down
The atomic number is 6 for this reason (_6^14 extrmC) includes six protons.

Question

How many neutrons does (_6^14 extrmC) centregalilee.comntain?

up

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

Question

Write under the number of particles in the following nuclei:

<_30^64 extrmZn>

<_92^238 extrmU>

<_1^3 extrmH>

up

down
<_30^64 extrmZn>

Number of proton Z = 30Number of proton + neutron A = 64Number of neutrons N = 64 - 30 = 34Since this is a cell centregalilee.comre there space no electrons

There space 30 protons and 34 neutrons.

<_92^238 extrmU>

Number of proton Z = 92Number of protons + neutrons A = 238Number of neutron N = 238 - 92 = 146Since this is a cell centregalilee.comre there are no electrons

There room 92 protons and also 146 neutrons.

See more: How To Draw The Olympic Rings, How To Draw An Olympic Ring With A Pencil

<_1^3 extrmH>

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

There is 1 proton and also 2 neutrons.

2Page 2 that 4
Glossary
up

down

## More Guides

The framework of the cell nucleus - CCEA