B. Elements on the top right, excluding column 18.
The bottom number of the original, unsimplified fraction represents the number of equal parts in one whole, where each part is of the same magnitude as the top number. Once the fraction has been simplified, these links no longer apply directly, but only through equivalence.
Any fraction whose numerator (top number) is larger than the denominator (bottom number), for example 2/3, 11/20, or 59/93.
It is a rational number. The reason that it is rational is that you can represent it as a fraction, where the denominator (the number at the bottom of the fraction) is not equal to 0.So, for example, as we could write the number 15.125 as 15125/1000 then it is rational.
To explain simply, think of a fraction. There is a number (in simple cases) on top and a number on the bottom. The numerator is the top number, the denominator is the bottom one. An easy trick I used to remember is that d is for down- denominator goes down. Though probably not as useful, numerator has a u in it, to represent up. Hope this helps!
Electronegativity increases from left to right and decreases from top to bottom on the periodic table.
Electronegativity generally increases from left to right and from bottom to top on the periodic table. It is highest in the upper right corner with fluorine being the most electronegative element.
On the Periodic Table of elements, electronegativity increases as you move left to right across a period.
Electronegativity, for an important trend.
Electronegativity generally increases from left to right across a period and decreases from top to bottom down a group on the periodic table. This means that elements towards the top right of the table have higher electronegativity values compared to elements towards the bottom left.
Atoms with the lowest electronegativity values located on the leftmost part of the periodic table. The atom with the lowest electronegativity belongs to Francium.
In a group, electronegativity tends to decrease as you move down the periodic table. This is due to the increase in atomic size and shielding effect, which reduce the attraction of the nucleus for electrons in outer shells.
Atoms to the left on the periodic table Atoms with a large atomic radius
Electro negativity is lowest in the bottom of the first group. Cs and Fr have least electro negativity.
Their metallic properties increase and their atomic radii increase.This can be checked with the Reference Table S with the atomic radii and metallic properties. Easy, right?
Atomic size increases to the bottom left, and the following increase up and to the right with exceptions: Electronegativity Electron Affinity (Z-effective) Ionization Energy Elements to right have fuller valence shells, etc
Electronegativity increases from left to right across a period in the periodic table and decreases down a group.