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Particle Physics
Relatively recent experimental results have confirmed what philosophers throughout history had theorized all along; that all matter is made up of elementary particles. Those curious about this cutting-edge field of physics known as particle physics should post their questions here, including those about fundamental particles, fundamental forces, Grand Unified Theories, and the extraordinary devices that have been or need to be engineered to research them.
3,842 Questions
Why the suffix of atomic particles is on as proton neutron positron electron?
In 1894 the physicist Stoney proposed the name electron(on being a Greek suffix); the names of the other elementary particles were formed by imitation.
Calcium has atomic number 20. A neutron calcium atom therefore has 20 protons and 20 electrons. Ca2+ has a charge of positive 2, so it must have 2 more protons than electrons. Ca2+ has 18 electrons.
Yes, and the protons and electrons are on the outside
How many protons and electrons does Kr atom have?
A Krypton atom has 36 protons and 36 electrons each.
Se2- anion
ghjfhhftyj
Does barium have two electrons in its outer p orbitals?
Yes, barium is divalent with two electrons in the outer shell.
What are the effects of a antimatter plus matter explosion in vacuum?
Exactly the same as outside, but the debris would travel farther because there is no resistance in the vacuum. Outside the vacuum the explosion would happen instantaneously once the anti-particles collided with oxygen.
Where in the atom is the mass of the atom concentrated?
It is the nucleus. Mass of electrons is too small
How many valance electrons does Au have?
Au, gold, is atom number 79, so in its (neutral) elemental form it has 79 electrons.
Does antimatter have a nucleus?
Antimatter is composed of antiparticles in the same way that normal matter is composed of particles. Consider that atoms are composed of protons, neutrons and electrons. An antimatter atom could be composed of anti-protons, anti-neutrons and anti-electrons (which we know as positrons).
Yes. According to Einstein, the mass of an electron can be converted into energy, which will then dissipate. The famous E=mc2.
The net potential energy is zero to begin with, so it is zero to end with, and thus the change is zero as well. The reason for this is because the box doesn't have the ability to fall (or spontaneously react, depending on the contents!) as far as we know because the problem you've given says that we are on a level floor.
If it were an incline, you'd form a right triangle by stating the length it moved along the incline and the angle. You would then solve sinΘ=height/hypotenuse for the height, then you'd plug that into an equation that you should find in your textbook or equation sheet.
How many unfilled electron positions are in a carbon atom?
Carbon has an atomic number of 6, therefore the first valence shell is filled with two of the electrons, leaving four electrons and eight empty spaces on the second valence shell.
So... 4 XD
Hope this helped
Why does moisture need to be removed before an organism can be viewed with an electron microscope?
Liquids and gases expand inside a vacuum, so the organism's shape would be destroyed..
A boson responsible for carrying the weak nuclear force (responsible for beta decay). There are three different kinds W-, Z0, and W+ all rather heavy and acting only over short ranges.
How do atoms become ionized in the atmosphere?
Ionizing of atoms in the atmosphere is due to interactions with ultraviolet light or other radiations and particles from the cosmic space.
