answersLogoWhite

0

Most of the time, one would say protons and neutrons. But if you wish to get an answer that is quite exact, you would have to include electrons.
The subatomic particles protons and neutrons determine most of the mass of the atom. Electrons contribute a much smaller amount, and the strong nuclear force itself plays a role in determining the actual mass: The average actual mass per proton and neutron of iron atom is slightly less than the average actual mass of a hydrogen-2 isotope.

User Avatar

Wiki User

12y ago

What else can I help you with?

Continue Learning about Chemistry
Related Questions

What is the electrical charge of the 2 particles found in the nucleus of an atom?

protons and neutrons


What is the overall charge of a carbon atom and three oxygen atoms?

The overall charge of a carbon atom and three oxygen atoms would be -2. This is because carbon has an oxidation state of +4 and each oxygen atom has an oxidation state of -2, resulting in a total charge of -2 for the entire molecule.


What is the subatomic particles charges of calcium atom?

The three main subatomic particles that form an atom are protons, neutrons, and electrons. The center of the atom is called the nucleus.The protons have a positive charge, the neutrons have no charge, and the electrons have a negative charge.


Which two particles make up most of the mass of a hydrogen-2 atom?

The two particles that make up most of the mass of a hydrogen-2 atom are the proton and neutron. The proton has a positive charge and is responsible for defining the element, while the neutron has no charge and helps stabilize the nucleus.


Charges of atoms?

A charge of an atom is dependent on the particles that make it up. To determine the charge, you subtract the number of electrons from the number of protons. An atom with 2 more protons than electrons would have a charge of +2, whereas an atom with 1 less protons than elections would have a charge of -1.


What particle or particles are located in the center of an atom?

Basically nucleus is present in the centre of an atom which occupies very little space but it is responsible for most of the mass of atom. Its size can be assumed almost of a cricket ball IF atom is assumed as the stadium. being so small it still has a very complicated structure. It mainly contains 2 fundamental particles neutron - having no charge and mass=1.67493 x 10-27kg and proton having mass=1.67262 x 10-27kg and charge= +1.


What happens when an atom becomes an ion with a 2 charge?

When an atom becomes an ion with a 2+ charge, it means that the atom has lost two electrons, resulting in more protons than electrons. This gives the ion a positive charge since protons are positively charged particles. The ion will now be attracted to other particles with a negative charge to achieve stability through the formation of ionic bonds.


What particles contribute to the charge of an atom?

In terms of atomic theory the protons and electroncs contribute the charge to an atom. In terms of quantum theory electrons are a type of lepton and protons are composed of quarks. So quarks and leptons contribute nuclear charge.


When an atom becomes a ion with a 2- charge the atom?

an ion with a 2- charge has 2 more electrons than usual


What kind of particles atoms made of?

Well there would be 3 kinds of particles that CAN be present in an atom. All 3 may not always be present though in every element. 1. Neutron - Neutral Charge 2. Electron - Negative Charge 3. Proton - Positive Charge


Particles without electric charge in the atom's nucleus?

Neutrons (n0) are in the nucleus of an atom and have no electrical charge. The Neutron is made of 1 "up" quark and 2 "down " quarks giving it a net charge of zero. Up quarks have a charge of 2/3, and a Down quark has a charge of -1/3 thus: n (1xup, 2xdown) = (1x +2/3)+ (2x -1/3) = 0. (quarks are sub atomic particles, the proton, neutron and electron are composed of them, each has three)


Is alpha radiation unaffected by a magnetic field?

no, it curves steadily towards the north side of the magnet. this effect happens because alpha particles have a positive charge due to their atom. the atom of an alpha radiation atom is 2 protons and 2 neutrons (similar to He), which gives the atom a positive charge thus it bends towards the north or negative side of the magnet.