The Periodic Table of Elements is arranged from left to right, it is organized on the basis of atomic numbers. Atomic Number is the number of protons( or electrons) present in a single atom. For example, Hydrogen has 1 proton ( 1 electron) present , it has the atomic number 1. The table is divided into 18 groups and 7 rows in increasing order of atomic numbers. Due to this systematic organization it is easily possible to determine the different properties of each element.
The reason the periodic table is the shape that it is has to do with the electronic configurations of the elements. The periodic table is arranged so that all the elements in each period (row) have similar electronic configurations to the other elements in that period. That also often means that elements in the same group (column) show similar chemical reactivity. Electrons in atoms are arranged in different orbits. Elements in the same group all have the same number of electrons.
Part two!
-Atoms and Ions of the same element have the same number of protons, which means they have the same atomic number.
-Atoms have a neutral charge, but an ion has an a positive or negative charge. An ion is trying to get to a perfect octet (which means the valence elections are eight) or two, which is a perfect duet, so it can be stable.
- The groups will help you figure out the charge of the ion. Many ions that are non metals will have a negative charge because you want to gain elections, and the noble gases will have a positive charge because they will need to lose electrons.
No comments:
Post a Comment