The atomic radii of the elements change in a predictable, periodic way. As you move from left to right across a main group period of the periodic table, atomic radii decrease. At the same time, the number of valence electrons increases. The reason for the left to right decrease in atomic...
Periodic Properties: The periodic table categorizes the elements according to their properties and atomic number (number of protons or electrons). Along the period (rows), the atomic number increases. Down the group (columns), chemical properties like atomic radii and ionization energy repeat. ...
Alpha Decay: Alpha decay describes a nuclear manner through which the nucleus of an atom releases an alpha particle. The nucleus contains protons and neutrons, with some number of electrons in orbit around it. If these electrons are somehow disturbed, then they will fall into the nucleus, where...
From what I understand about time dilation and the relativity of simultaneity; if we imagine two people near a black hole and one of them begins to approach...
Why does the atomic radii decrease as you go across a row? Effective Nuclear Charge: The effective nuclear charge is the amount of attraction valence electrons experience to the nucleus. It is calculated using the following formula: {eq}\rm Z_{eff} = Z - S{/eq} Where Z = the ato...
Why does the atomic radii decrease as you go across a row? What is mass spectroscopy in terms of chemistry? What is its significance? Explain why some numerical values have an unlimited number of significant digits. Why atoms in the same group on the periodic table act similar chemically ...
Why does the atomic radii decrease as you go across a row? Why are there so many more carbon compounds than the number of compounds made up of all the rest of the elements combined? What is an example of a transition element? Using that example, describe the element's physi...
Why does atomic size tend to decrease with increasing atomic number across a row of the periodic table? Why does atomic radius increase going down a group, but it decreases across a period same for decreasing ionization energy? Why is the atomic radius of Li larg...
Why does ionization energy increase when moving across a period? Ionization Energy: When an isolated gaseous neutral atom loses an electron, a gaseous cation is formed with a +1 charge. The ionization energy describes the energy required for this process for one mole of the gaseous atoms. ...
(positively charged and heavier than hydrogen). The result was a combination of particles that were not deflected and some particles unexpectantly bounced off. This result in the research modifying the atomic model to develop the nuclear model to address the presence of a nucleus where these ...