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The three major sub-atomic particles are : - PROTONS, ELECTRONS and NEUTRONS.

Protons are positively charged (+) and found in the nucleus of an atom.

Electrons are negatively charged (-) and found around (not IN) the nucleus of an atom.

Neutrons have no charge (o) and are found in the nucleus of an atom .

The number of protons ( and electrons) is the ATOMIC NUMBER, and the atoms position in the Periodic Table .

The number of protons equals the number of electrons ( in order to keep the charges balanced).

The Sum total of the protons and neutrons is the Atomic Mass/WEIGHT.

The number of neutrons can vary This gives a different atomic mass for a given element and are known as ISOTOPES.

Taking hydrogen as an example It has three isotopes.

[1/1]H (Protium) ; 1 proton . ZERO(NO) neutrons, 1 electron.

[2/1]H (deuterium); 1 proton , 1 neutron , 1 electron

[3/1]H (tritium); 1 proton, 2 neutrons, 1 electron . (This isotope is radio-active)

[1/1] protium is the most common isotope of hydrogen , and what is normally thought of as hydrogen.

[2/1] deuterium is sometimes named as 'heavy hydrogen'. It is not a very common isotope.

[3/1] tritium is sometimes named as 'super-heavy hydrogen'. It is a rare isotope ,and because of its radio-activity only found in labs.

However, as mentioned above for all isotopes the protons and neutrons are in the nucleus of the atom, and collectively they are named as 'nucleons'. The electrons are found outside the nucleus.

These 'rules' apply to all elements.

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lenpollock

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3y ago
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Webster Bednar

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im not sure this is correct...
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AnswerBot

6mo ago

The three major subatomic particles in an atom are protons, neutrons, and electrons. Protons and neutrons are found in the nucleus of an atom, while electrons orbit around the nucleus. Protons have a positive charge, electrons have a negative charge, and neutrons have no charge.

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Wiki User

13y ago

Electron; Negative.

Neutron; No charge, neutral.

Proton; Positive.

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13y ago

Protons, Neutrons, And Electrons

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Q: What are the three major subatomic particles in an atom?
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Related questions

What are the three atoms subatomic particles?

protons, neutrons, and electrons are the subatomic particles involved with an atom


What do the three of the subatomic particles have in common?

They have a mass and are components of the atom.


What are the major components of an atom?

The 3 major componests of an atom are called subatomic particles, which are electron, proton and neutron.


What are the smallest of the three subatomic particles and are not counted in the mass of an atom?

electrons


What are the basic subatomic particles of an atom?

There are three: protons, neutrons, and electrons.


Three subatomic particles are found in an atom?

protons, electrons and neutrons


Is a subatomic particle an atom?

No; an atom contain subatomic particles.


Describe the atom and its three subatomics particles?

An atom is a smallest particle of an element. The subatomic particles are electrons, protons and neutrons


How does subatomic particles relate with the atom?

The atom contain subatomic particles as neutron, proton, electron.


What does an atom conisist of?

It consists of three subatomic particles, Protons, neutrons, and electrons.


What are the three subatomic particles located in every atom?

proton,neutron,electron


Three subatomic particles that make up an atom?

Protons, neutrons, and electrons.