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Atoms and Atomic Structure

Parent Category: Elements and Compounds
Questions about the structure of atoms/molecules and the resulting properties such as shape, polarity, and number of subatomic particles.
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!
The electrical resistance between subatomic particles is farreaching from the atomic nucleus and electron cloud. Electrons arealso moving very fast. The probability cloud that determines wherethe electrons could be, the orbitals and the nucleus itself, arestill not solid objects. Keep in mind under...
The electromagnetic and strong nuclear forces are very powerful andrepulsive at close ranges. Put two atomic nuclei near each otherand they will push away from each other. Similarly if you put twonegatively charged particles near each other they will also repelat very close distances.
group1: +1 group2: +2 group15: -3 group16: -2 group17: -1
Metals useually have few valence electrons and they loose electronsfrom their outermost shell thus, forming an ion with positivecharge (cations). This is because it is easy for metals to looseelectron and attain stable or octet configuration similar to raregases. Hence to attain stability metals...
Calcium oxide - CaO Ca: 20 electrons Oxygen: 8 electrons Total: 28
An octet electron arrangement is where an atom has 8 valence electrons. It's very stable and unreactive. Some metal atoms tend to donate its electrons and the electrons accepted by non-metal atom. This is called ionic bonding. Some non-metal electron share electron among themselves to achieve...
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...
Most atoms are electrically balanced because they have the same number of protons, which have a charge of +1, and electrons, which have a charge of -1. However electrons can be lost or gained. When they are, the atom has a different number of protons to electrons so it becomes charged. Example. An...
electrons and neutrons. When electron # changes it creates an ion.When neutrons # changes it is called an isotope.
700 milliion years. The definition of half-life is the period of time during which one-half of the atoms of an element undergo decay into other elements.
There are several atoms that do not take part in chemical reactions. They called noble gases. They are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Kr), and Radon (Rn).
A single bond involves one electron from two atoms, bonding themtogether with a total of two electrons.
Electron capture is the absorption of an electron by an atomicnucleus if that nucleus is neutron poor. An electron is captured,usually from an inner electron shell of that atom, and it willconvert a proton in the nucleus into a neutron. We know that aneutron is converted into a proton and an...
Do you mean that there is a double bond between each carbon? Itwould look like this: H3C=C=CH3 Since it is a straight line, the bond angles would be 180 degreesfrom C to C.
No. A compound is a mixture of different elements. They can be indifferent proportions. Examples are CH3 and CH4.
They go where they are not. They are not on the other side of themembrane. So they go there. In fancy words, it is called going downthe concentration gradient. It is diffusion.
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]-
1.4 x 6.02x10^23 = 8.428x10^23 molecules
the reason for this is because of the electromagnetic force, where opposite charges attract. The further right you go, the more electron and protons there are, therefore, because protons are in the nucleus (center) and electrons are in the electron cloud (outside the nucleus) the electron cloud is...
There are several weak bonds. There hydrogen bonds, ionic bonds, and van der Waals interactions.
Oxygen has eight protons. Add two more and you get Neon which has 10.
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...
Oxygen & Nitrogen, followed distantly by sulfur.
The inner most shell can have up to 2 electrons, the next can have8 electrons, the third shell from the center can have 18 electrons.
You mean, what happens when positive and negative charges are equal? That is simple, the equal opposite cancel each other out and we have an electrical neutrality
im learning this in science, the most direct answer is 8, the equation to figure this out is 2 times n times n where n is the energy level in this case, 2, so 2 times 2 times 2=8. but once you get to the 18th element (i believe it is potassium) and above this equation no longer applies, but the most...
That's called an element. The 90 or so naturally occurringelements, in various combinations, make up all matter in theuniverse.
Actually, neutrons (because they have a neutral charge) are not involved in making an atom or molecule an ion -- only protons and electrons do that. So, the number of protons compared to the number of neutrons doesn't matter.
In an atom, the number of electrons is equal to the number of protons in the nucleus of the atom. This only varies in ions, where electrons have been added to an atom or removed to create a full outer shell.
The maximum number of electrons in any p orbital is 6.
0 atoms. I'm guessing you are suggesting table salt, which issodium chloride. Sodium chloride only contains sodium and chlorineand no oxygen.
ions, with a loss of electrons it would be called a cation and witha gain it would be called an anion
Lost their electron shells.
yes we have various isotopes on the difference in the number ofneutrons
A cation is a positive ion. To get 2 positive charges the atomwould need to lose 2 electrons. As its configuration is 2,8,2, thisis what it is likely to do when it reacts as the resulting ion hasan inert gas structure.
It is the neutron that has about the same mass as a proton. Recall that the tiny electron has a mass much less than one thousandth that of a proton.
Isotopes are very similar in their physical and chemicalproperties, so they would act the same. They differ by only 5neutrons, and Kr is not very reactive anyway.
kerosene is unsaturated hydrocarbon
An ionic bond, most definitely, Cupric sulfide or copper sulfide;the ratio of the ions and their oxidation state vary. A more commoncompound might be copper sulfate Cu2(SO4), which is the copper saltof sulphuric acid and it can be formed by reacting metallic copperwith sulphuric acid.
Actually, the nucleus is incredibly small and the neutrons are contained there.
Why are atomic weights given as fraction and not whole numbes likeweight = proton + neutrons? Because they are taking an average ofthe weight of the naturally occurring isotopes, so that when youuse the tables and you are using atoms from earth (most do :D )then these fraction values will be correct...
The mass of one specific isotope, called the mass number, is thetotal number of p rotons plus neutrons. M = P + N Therefore, for atomic number P , you would take the massnumber minus the neutrons: P = M - N.
The atomic weight of Aluminium is 26.9815 amu i.e. 4.5x10^-23 grams.
Well if you mean sunflower seeds you cant use youre teeth without even braking im very used to it myself i havent broken a sedd in months . If you are talking about a different seed i dont know wich one youre talking a bout you need to bve more specific
Probably. He just got a new daughter, and therefore he's taking a break. Maybe he will have a comeback with HBK? :)
To calculate the relative atomic mass of an element (which is byits definition an average), you need the mass number and relativeabundance of each isotope present. Suppose we have the following data from the mass spectrometer: first isotope mn X, abundance A% second isotope mn Y, abundance B% third...
Bromine is a none metal element. atomic number of it is 35.
Atoms... ---> protons, nuetrons, electrons ----> up and down quirks, subatomic particles and if you believe in string theory----. quarks are made up of vibrating springs.
If I absolutely had to answer with two atoms, I'd say carbon and hydrogen. This is because carbon is the absolutely indispensible atom that is the absolute basis of all organic molecules, forms they're backbones, and it is carbon's ability to make multible chemical bonds that allows for complex...
The elements are hydrogen and oxygen. H 2 O is a compound itself
Electrostatic force of attraction between oppositely charged ions.
an ion is divided into cation and an anion . cation has a positivesign whereas anion a negative.
Protons have a positive charge, electrons have a negative charge and neutrons carry no charge because they contain a proton and a electron which causes the charge to remain neutral. EDIT: the above is false, well at least the part about the neutron Neutrons, 1 up quark 2 down. No charge, slightly...
Subatomic particles are particles smaller than atoms. They are the constituents of atoms. Namely protons, neutrons and electrons. Theoretically, these particle can be further divided.
2 or more electrons, because Oxygen already has 8.
no. elements are categorized by the number of protons. also ifthere are no protons. then it is no longer an atom
Proton: 1,007 276 466 77(10) atomic mass units (u) Neutron: 1,008 664 915 6 (6) atomic mass units (u) Electron: 5,485 799 094 3(23).10 -4 atomic mass units (u) If you set the mass of an electron as 1 Then the mass of a proton is 1835 (Approx) The mass of a neutron is 1836 (Approx)
weak forces. also known as the cuolombic forces
Since protons and electrons carry the same but opposite charges, the charge of a single proton is often given in units as +1. More specifically, a proton's electrical charge is e divided by the square root of two, .707 x 0.16E-18 Coulomb. This is the effective (RMS) charge, or 0.113137E-18 Coulomb...
An ion is formed. A positive ion if there are fewer electrons than protons. A negative ion if there are more electrons than protons.
Diamonds are all carbon. just divide 1200 grams by 12.01 grams per mole carbon.
The electron configuration of an atom determines how it behaveswhen it comes into contact with another atom.
Light causing electrons to be released from the surface of a metal.
Uh... you left out the "following" part. Neon has 10 protons, 10 electrons, and 10 neutrons. It is a noble gas and has a full valence engergy level (2p) and satisfies its octet rule. Nobles gases are extremely stable, making it difficult to react them with anything.
There will be no double bonds between carbon atoms in a saturated fatty acid.
The element carbon has the ability to link with itself in long chains containing from two up to hundreds of units. It can also form rings and bond with many other elements and they often with each other. This ability means that many millions of possible compounds can be formulated. The chemistry of...
Much more electronegative than Sodium(Na).