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Cosmology

Parent Category: Physics
Cosmology is the area of physics that studies the universe in and of itself. Through the use of incredible and ingenious methods of experimentation, cosmologists attempt to discover how the universe began, how it is developing, and how or if it will end. Questions regarding the Big Bang, dark matter, dark energy, the cosmic background radiation, and the initial formation of the fundamental particles can be placed into this category.
The neutron has about the same mass as the proton, each hasa mass a tiny amount greater than 1 AMU (atomic mass unit). Theneutron is the smallest bit more massive. The electron has a mass of just a bit over 5/10,000ths of an AMU.Extremely less massive in comparison, isn't it!
Protons and neutrons are called hadrons. A hadron contains threequarks. Quarks come in 6 flavors (types). These types are up, down,top, bottom, strange, and charmed. (The names are completelyarbitrary.) A proton contains two up quarks and one down quarkwhile a neutron contains one up quark and two...
Also, by electron charge, are you referring to the opposite ofelementary charge? The systematic name is monohydrogencarbonate(-1), this tells you the formal charge, as would simplyadding the charges using the chemical formula of bicarbonate.[HCO3]-
Electrons are a type of fundamental particle known as a Lepton.Protons how ever are made up of quarks. A proton has a quarkstructure of up, up, down (UUD). The up quark has a charge of +2/3and the down has -1/3 which gives the proton its overall positivecharge. The up and down quark both have a...
He would have likely agreed with classic Newtonian physics. Look upthe string theory. It makes Einstein's absoluteness belief andquantum mechanics' relativity ideas converge together.
yes we have various isotopes on the difference in the number ofneutrons
yes, cathode rays are streams of electrons
Out of protons, neutrons, and electrons, electrons are the smallest.
it depends on the element and isotope
Quarks are considered to be fundamental particles, and as such they do not really have a classical "size". Their masses can be compared, however, and they are not the same for all types of quarks.
try to get your enemies planet pristeige below -1000% then the planet label will turn yellow, therby showing you are forbidden from that system.
Beta particles or radiation is an electron emitted at high speed or energy from some types of unstable elements in a process known as beta-decay. Beta radiation is not healthy for living things. It is usually stopped by a few millimeters of metal, wood, or plastic. Direct exposure to the skin can...
The Earth is. It has all these things crawling and moving near itssurface.
First of all, there's two theories of relativity. The one on normalrelativity which indicates that an object that is moving very fastwill experience less time than one that is stable. The one onspecial relativity indicates that the more gravity an object isputted into, the less time it will suffer...
There is no real planet Krypton; nor an imaginary Krypton as itblew up as Kal Els parents flew him away to earth in a smallspaceship.
Light causing electrons to be released from the surface of a metal.
The number of protons in an atom is its atomic number.
Three different subatomic particles make up an atom. They are the proton, neutron and electron. -Suzie
The planets in our solar system are not always visible to anobserver on Earth, for various reasons. Daylight reduces thevisibility of planets significantly. Mercury and Venus, since theyare inside the orbit of Earth (closer to the Sun), could only beseen in favorable conditions near sunset or...
A proton has a charge of +1 and an electron has a charge of -1.
Protons,Neutrons, and Electrons. Which are all inside the nucleusof the atom.
It really depends in which atom you're talking about. because ahydrogen atom which it's atomic number is 1 has 1 electron, 1neutron, and 1 proton; the helium atom, has an atomic number of 2,the nitrogen atom of 7, and Unumquadium of 114, meaning thatUnumquadium has 342 subatomic particles( a...
The Wikipedia lists an estimate of 10 to the power 80 hydrogenatoms for the observable Universe. The total number of particleswould be somewhere in that order, depending on what "particles" youare thinking of.
Because it does not have enough mass to crush itself with it's gravity.
The big bang occurred approximately 13.7 billion years ago.
elecron can move from atom to atom... yes
Yes, but an electron configuration could be that of an ion. The identification of an element depends on the number of protons in its nucleus, so only when the species is also neutral can the electron configuration be used to identify it. Examples 1s 2 2s 2 2p 6 is the electron configuration of...
The nucleus which includes the protons and neutrons, and theelectron cloud which contains the electrons. If you want to getinto true quantum mechanics, then there are the quarks, theleptons, the bosons, gluons, etc.
This process of decaying is called a beta decay. The produced proton remains in the nucleus and the electron is released from the atom.
TWO types of subatomic particles?? Gosh, the basics are the electrons, neutrons, and protons. Then you add muons, gluons, 6 quarks and so on, and you come up with many particles. And that's just for matter. If you consider anti-matter, you have positrons, anti-protons, anti neutrons, etc etc etc.
Tritium, a radioactive isotope of hydrogen.
Proton,electron and neutron.
There are about 61 neutrons in silver. It actually has lesselectrons and protons than neutrons, since it only has 47 of them.
The location of those lines would be shifted to a longer wavelength (or lower frequency or energy) -- ie, towards the red part of the visible spectrum. In other words, a red shift.
Cesium has 55 electrons.
Nothing. The distortion of space and time within a black hole'sevent horizon is so extreme that the only possible direction ofmovement is further inward.
The electrons come from water. In the light dependent stage water is split into hydrogen ions (H + ), electrons and oxygen. The electrons are passed on to chlorophyll, the H + ions combine with NADP to form NADPH and the oxygen is released.
The number of protons in a nucleus depends on the element. Hydrogen has 1 proton, helium has 2 protons, and lithium has 3. All elements have different numbers of protons in the nucleus. If you look on a periodic table, each element has an atomic number. That number is the number of protons there is...
No. They have no charge.
A planet is too large to sit on a moon.
A neutron. They're about the same size
What you are seeing is an absence of light. You distinguish a black objects presence by its lack relative to other things.
The Big Bang theory predicts an expanding universe. The red shift, being the Doppler effect of light when something is receding from you, confirms this because when looking at galaxies the light emitted from them is red shifted. The farther away galaxies have a higher red shift, confirming that all...
Sunspots do not explode, sunspots are cooler regions of the Sun's surface caused by what are basically magnetic field "tangles" stopping the convection that brings heat to the solar surface. When the "tangle" untangles or snaps back the Sunspot fades away as that bit of the surface heats back up. ...
Big Bang Cosmology does NOT state that the mass of our Universeexploded from a single point into empty space. Rather, it statesthat the density of Universe has been decreasing at a (more orless) constant rate over the last 13.77 billion years or so, due toan EXPANSION of space itself. . Think of...
I think its 14 total. (7 orbitals)
In our solar system, the outer planets, all referred to as gasgiants, have no solid outer surface at all, their entire outerenvelope is gas; any artifacts visible on them are attributed tolocal changes in composition or weather effects. Jupiter, Saturn,Uranus and Neptune are all believed to have...
usually it is the second to third layer of electrons. it depends on what atom ur talking about, some atoms (like magnesium) have 3 electron levels; when some atoms (like gold) may have over 7 levels of electrons. it sometimes has to do with the atomic number
A planet that has an orbiting ring around it is saturn althoughthere are many other planets with rings saturn has the largestring!! Fun fact jupiter also has a ring but its to clear to see itin any pictures!
In our solar system, because of the lack of moderating effect of athick atmosphere, and its proximity to the Sun, the planet Mercuryhas the largest temperature range between the day and night sides.The side facing the sun gets as hot as 430 C, the side facing away,as low as -173 C.
these element has 2 electron in the valence shell and is magnesiumof group 2
Your question is not clear. A current is generated when a group ofelectrons flow through a conductor, and this happens when there isa potential difference between the 2 ends of the conductor. If you want to know how can we start the flow of electrons it is bycreating a potential difference in...
not every star can turn into a black hole, because it has to meet a certain size to do so. our sun will not turn into a black hole, how ever, it will destroy our planets. many stars can turn into black holes, but only when it meets the end of its life which is when it stops burning gas. stars have...
It has to do with entropy. The law of entropy states that the universe tends toward having the lowest possible energy at every point. Two oppositely charged particles' magnetic fields cancel out, so, to follow this tendency, they attract each other to have more of their fields overlapping, and so,...
Main points of the big bang: . Everything started from one small point in space billions of years ago. This tiny space is thought to be smaller than a mm and had all the elements in it. Then there was a big explosion. . This explosion caused and is still causing the Universe to constantly expand...
Yes, probably many of them. We believe that there is a supermassive black hole at the center of the Milky Way galaxy; that there are probably similar suoermassive black holes at the centers of many large galaxies.
That depends on the element. Any such atom with more than four protons will gain electrons tobecome electrically neutral. If that atoms has four protons (beryllium) then it will be able toform a stable ion with two electrons. If it is left with threeelectrons it will either gain an electron to form...
Hydrogen peroxide is H2O2, so each hydrogen has 1 proton, and eachoxygen has 8 protons: (1 x 2) + (8 x 2) = 18 protons in eachmolecule.
The planets are boys and girls because they were named after some important people.
It depends on how much energy it has
No they do not. All matter in a black hole is crushed into a single point called a singularity. A point does not have any dimensions so there is no bottom. Or even a top for that matter.
Planet Earth has a radius of about 3,960 miles.
Every "neutral" (uncharged, non-ionized) atom has the same numberof electrons as protons, i.e. at least one in the case of hydrogen.Only ionized atoms can have no electrons, as positive ions.
No, the T Tauri star is not a giant star, in fact it is a medium-sized star. It is also a very cold star.
What should the reaction, if we connect the positive and negative pole of any electric plug at our home? The result should be a spark (kind of mini blast) and finally some energy should be convert into Carbon. In the same process if the electric voltage (both, positive and negative) is too much high...
Mass Number Protons and neutrons are collectively called called nucleons. The number of nucleons (protons plus neutrons) in the nucleus of an atom is called the mass number . For example, Lithium has 3 protons and 4 neutrons in its nucleus. It's mass number is 7 (3+4). The mass number usually...
Quarks are fundamental particles, and three of them make up the particle group we call the baryons . The two common baryons we encounter are the proton and the neutron , which are composite particles made of of three quarks each. The proton is composed of two up quarks and a down quark, and...
Yes. According to Einstein, the mass of an electron can be converted into energy, which will then dissipate. The famous E=mc 2.
The mass of a proton is 1.672 621777(74)x 10 to the power of -27, in grams.
First, you got to understand something. A black hole is just as ablock of ice. The smaller it is the faster it melts. So speakingscientifically the black hole releases radiation relatively fasterwhen its smaller than when it's bigger, which heats up the deadstar. For that reason the black holes...
Mainly hydrogen; also some helium, and small amounts of lithium. Heavier elements (the so-called "metals") were formed later, in stars, through fusion. It is thought that initially there were no chemical elements as we know them. The lighter elements mentioned above came into being after the big...
yes, many think that dark matter isn't affected by regular matter, so it can simply pass through at high speeds.
Albert Einstein's cosmological constant was proved wrong by Hubble as he proved the universe is expanding so it doesn't need a constant to stop it imploding.
Caesium's chemical symbol is Cs
Simple. We die a brutal and painful death.
The names of moons Titan, Tethys, Titania start with "t".
The chemical nature of the substance. The rare earths all have a similar 'outer shell', and differ only in their 'inner shells', hence the similarity of many of their properties.