英语翻译The atomic radius decreases on going from left to right across a period,because of the increasing nuclear charge,which exerts a greater attractive force on the outer electrons.The screening effect is observed in atoms with an atomic number greater than 2.重点翻译这2个句子.最好能帮我分析...
There are two trends for atomic radius in the periodic table: As you move down each group the size of the atomic radius ___As you go across a period, the size of the atomic radius ___ 1st Trend:As you move down the group the ___ are found in energy levels ___ from the nucleus...
The decrease in the atomic radius across the period is due to decrease in effective nuclear charge with increase in atomic number. Down the group atomic number increases with increase in atomic number. As we move down the group a new shell is added, which means the distance between nucleus ...
An atom will have different radii depending on the bond it forms, so there is no fixed radius of an atom. Atomic Radii are therefore determined by the bonds they form.
7 state and explain qualitatively the variations in atomic radius and ionic radius across a period and down a group 1.2 Isotopes 1 define the term isotope in terms of numbers of protons and neutrons 2 understand the notation xyA for isotopes, where x is the mass or nucleon number and y is...
Periodic trends in atomic radius Atomic radius tends to decrease on passing along a period of the periodic table from left to right, and to increase on descending a group. This is, in part, because the distribution of electrons is not completely random. The electrons in an atom are arrange...
Atomic Size & Atomic Radius - Atomic Size is the distance between the center of the nucleus and the outermost shell of electrons is called the atomic radius. Atomic radii can be measured by measuring the distance between the nuclei of atoms in a metal. T
Why does atomic radius decrease across a period on the periodic table of elements? Atomic radius decreases across a period on the periodic table because, when moving from left to right across a row, there are more electrons in the valence shell and more protons in the nucleus. These additiona...
Figure8.2.58.2.5: The Atomic Radius of the Elements. The atomic radius of the elements increases as we go from right to left across a period and as we go down the periods in a group. The increase in atomic size going down a column is also due to electron shielding, but the situation...
Atomic radius generally increases as we move ___. A. down a group and from right to left across a period B. up a group and from left to right across a period C. down a group and from left to right across a period D. up a group and from right to left across a period E...