In the outer orbit they all have the same amount of electrons. Due to this they generally have quite similar characteristics eg. Group 1: Alkali metals: All very reactive, need to get rid of an outer electron
The Periodic Table hosts a wealth of information. I suspect from the way you asked the question, that the answer you are looking for is that the group number tells you the number of valence electrons that a particular atom has.
Let's look at group IIIB, the first element is boron. Boron has a total of five electrons. The first two are the core electrons which make up the 1s orbital, sometimes written as [He]. The remaining electrons then look like this [He]2s2 2p1. You can see then that there are three valence electrons.
A simple trick can be used to quickly obtain the electron configuration using the periodic table. If you look at the very left of the table you will see a deliberate isolation of groups IA and IIA. These are the s orbitals. In the middle of the table if you count from Sc to Zn, you will count 10 elements, these are the d orbitals. on the right side from boron to neon you will count six, these are the p orbitals. On the bottom, from cerium to lutetium you will count 14, these are the f orbitals. Therefore, by locating an element we can quickly get the electron configuration.
Example:
Iron
It is six elements into the transition metal group, thus d6. It also has its 2s orbitals. These are the valence electrons. The core electrons can be written as [Ar], or [Ar]3d6 4s2.
Generally speaking if you go down a group in the periodic table because their valence electrons will be in orbitals of similar shape and size they are expected to have similar chemical properties. ie. if iron participates in a chemical reaction ruthenium may also participate in the reaction.
the number of electrons on an elements outer ring give its group number.
P.S. There are 18 groups
The kind of bond that results when electron transfer occurs between atoms of two different elements can be considered covalent, polar covalent, or ionic. The type of bond will depend upon the identities of the elements and their electronegativity's.
As it has more electron shells between the nucleus and the outermost electron, and as group 1 elements react by losing there outermost electron, the more shielding effect between the nucleus and the electron, the smaller the force of attraction on the electron, so the more readily it will react as less energy is needed to break the bond between the outer electron and the positive nucleus.
An element's electron configuration determines its location (group) in the periodic table. It tells us how many valence electrons (s and p sublevel).
Amino acids are the basic structures of protein. Each type of protein depends on the arrangement of the amino acids. One inconsequential change can completely change the type of protein it is.
Electron Carriers.
Electron configuration is the arrangement of elements according to their increasing atomic numbers whiles period is the arrangement of elements according to the increasing number of valence electrons.
protons
The shape of a molecule only describes the arrangement of bonds around a central atom. The arrangement of electron pairs describes how both the bonding and nonbonding electron pair are arranged. For example, in its molecular shape, a water molecule is describes as bent, with two hydrogen atoms bonded to an oxygen atom. However, the arrangement of electron pairs around the oxygen atom is tetrahedral as there are two bonding pairs (shared with the hydrogen) and also two nonbonding pairs.
The electron has a negative charge and orbits the positively charged atomic nucleus. Many compounds are made possible by electron sharing between elements.
Alignment
Chlorine has one more electron then sulfur, so it has 1 more electron in the outer shell, 1 more valence electron. Chlorine has 5 electrons in the outermost shell and sulfur has 4.
Valence electrons are the ones that are used in bonding between atoms.love
Shape is the primary linkage between a corsage and a vase arrangement. Even in such a small arrangement as a corsage, the shape of the arrangement is the primary consideration. Rose, daisies, and other elements must be laid in the foundation in a pleasing shape for the corsage to be pleasing, just like in a vase arrangement. Florist
The kind of bond that results when electron transfer occurs between atoms of two different elements can be considered covalent, polar covalent, or ionic. The type of bond will depend upon the identities of the elements and their electronegativity's.
Each atom contribute with one electron to the bond.
Parallel. Coz all the elements will get same voltages from the sources. in case of series connection, the voltage is divided between all elements.
isobars are elements with same mass numbers (Atomic Mass) and different atomic number (number of proton or electron)