Groups in Periodic Table (With Group Names)
- Group 1: Alkali metals group (hydrogen not included)
- Group 2: Alkaline earth metals group
- Group 3-12: Transition and Inner transition metals group
- Group 13: Boron group
- Group 14: Carbon group
- Group 15: Nitrogen group
- Group 16: Oxygen group
- Group 17: Halogen group
- Group 18: Noble gases group
What does the group number mean on periodic table?
What is the meaning of the group number on the periodic table?
- For s-block elements , group number is equal to the number of valence electrons.
- For p-block elements ,group number is equal to 10+number of electrons electrons in the Valence shell .
- For d-block elements group number is equal to the number of electrons in a (n-1) d subshell + the number of electrons in Valence shell .
What does the group number on the periodic table represent?
The group number tells you the total number of electrons present in the outermost orbit of an atom. In other words, group number tells you the number of valence electrons of an atom. For example, Let us consider group 1 of the Periodic table. Group 1 indicates that the elements lying in that group have only 1 electron in its outermost orbit.
How are groups on a periodic table numbered?
the main groups are numbered from 1 to 7 going from left to right, and the last group on the right is Group 0; ... Only elements are found in the periodic table, never compounds. For example ...
What are the six groups in the periodic table?
periodic table: Groups The six noble gases—helium, neon, argon, krypton, xenon, and radon—occur at the ends of the six completed periods and constitute the Group18 (0) group of the periodic system. It is customary to refer to horizontal series of elements…
What does group number mean?
The group number tells you the total number of electrons present in the outermost orbit of an atom. In other words, group number tells you the number of valence electrons of an atom. For example, Let us consider group 1 of the Periodic table.
How do you find the group number of an element?
To determine the group, we need to understand some rules:If the element is in s block, then the group number is equal to the number of valence electrons. ... If the element is in the p block, then the number of the group can be determined by the formula: (number of valence electrons + 10).for groups.More items...
What are the 7 groups of the periodic table?
What are the 7 groups in the periodic tableThe Alkali Metals.The Alkaline Earth Metals.The Transition Metals.The Metalloids.Other Metals.The Non-metals.The Halogens.The Noble Gases.More items...
How do you identify the group number and period of an element?
If you are given with the atomic number of an element you can find it's period number and group number. The period number is related to the number of electron occupied shells in the element and the period number is linked to its valence electrons.
How do you read groups on the periodic table?
The periodic table is organized into groups (vertical columns), periods (horizontal rows), and families (groups of elements that are similar). Elements in the same group have the same number of valence electrons. Meanwhile, elements in the same period have the same number of occupied electron shells.
Are there 8 or 18 groups in the periodic table?
In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns (between groups 2 and 3) are not numbered.
What are the 18 groups in the periodic table?
There are total 18 different groups in Periodic table.Group 1: Alkali metals group (hydrogen not included)Group 2: Alkaline earth metals group.Group 3-12: Transition and Inner transition metals group.Group 13: Boron group.Group 14: Carbon group.Group 15: Nitrogen group.Group 16: Oxygen group.Group 17: Halogen group.More items...•
What are the 14 groups of the periodic table?
Group 14 Elements (Carbon Family)Carbon (C)Silicon (Si)Germanium (Ge)Tin (Sn)Lead (Pb)Flerovium (Fl)
What is the group of this element?
The vertical columns in a periodic table which are organized on the basis of the presence of electrons in the outermost shell are termed as a group. The elements in the same group show similar properties due to the similar electronic configuration of their atoms.
What are the 18 groups in the periodic table?
There are total 18 different groups in Periodic table.Group 1: Alkali metals group (hydrogen not included)Group 2: Alkaline earth metals group.Group 3-12: Transition and Inner transition metals group.Group 13: Boron group.Group 14: Carbon group.Group 15: Nitrogen group.Group 16: Oxygen group.Group 17: Halogen group.More items...•
What is Group 12 on the periodic table called?
zinc group element, any of the four chemical elements that constitute Group 12 (IIb) of the periodic table—namely, zinc (Zn), cadmium (Cd), mercury (Hg), and copernicium (Cn).
What is the group number of chlorine?
Group 7A (or VIIA) of the periodic table are the halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
How to identify an element group?
How to Identify It: The number for the element group is cited above the top element of each column. The element group values are integers running from 1 to 18.
Where are period numbers located in a table?
How to Identify It: Period numbers are located on the left-hand side of the table. These are simple integer numbers. Examples: The row starting with hydrogen is 1. The row starting with lithium is 2.
What is the value of an atom in the periodic table?
However, the value given in the periodic table is an average of the mass of all isotopes of a given element. While the number of electrons does not contribute significant mass to an atom, isotopes have differing numbers of neutrons, which do affect mass.
What is the atomic number of an element?
Element Atomic Number. One number you will find on all periodic tables is the atomic number for each element. This is the number of protons in the element, which defines its identity. How to Identify It: There isn't a standard layout for an element cell, so you need to identify the location of each important number for the specific table.
Why do periodic tables not have periods?
Most periodic tables do not number them because they are fairly obvious, but some tables do. The period indicates the highest energy level att ained by electrons of an atom of the element in the ground state. How to Identify It: Period numbers are located on the left-hand side of the table. These are simple integer numbers.
Why do periodic tables omit electron configuration?
Most tables omit this value because it takes up a lot of room.
What is the lowest atomic number?
The atomic number is easy because it is an integer that increases as you move from left to right across the table. The lowest atomic number is 1 ( hydrogen ), while the highest atomic number is 118. Examples: The atomic number of the first element, hydrogen, is 1. The atomic number of copper is 29.
How many groups are there in the periodic table?
In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table; the f-block columns (between groups 2 and 3) are not numbered. The elements in a group have similar physical or chemical characteristics of the outermost electron shells ...
What is the group 8 of elements?
An exception is the " iron group ", which usually refers to " group 8 ", but in chemistry may also mean iron, cobalt, and nickel, or some other set of elements with similar chemical properties. In astrophysics and nuclear physics, it usually refers to iron, cobalt, nickel , chromium, and manganese .
What group is the noble gases in?
b Group 18 , the noble gases, were not discovered at the time of Mendeleev's original table. Later (1902), Mendeleev accepted the evidence for their existence, and they could be placed in a new "group 0", consistently and without breaking the periodic table principle.
What is a group of elements made of hydrogen?
In history, several sets of group names have been used: a Group 1 is composed of hydrogen (H) and the alkali metals. Elements of the group have one s-electron in the outer electron shell. Hydrogen is not considered to be an alkali metal as it is not a metal, though it is more analogous to them than any other group.
When did group 1 and 18 change to group 18?
The modern numbering system of "group 1" to "group 18" has been recommended by the International Union of Pure and Applied Chemistry (IUPAC) since about 1990. It replaces two older incompatible naming schemes, used by the Chemical Abstract Service (CAS, more popular in the US), and by IUPAC before 1990 (more popular in Europe).
Is hydrogen an alkali metal?
Hydrogen is not considered to be an alkali metal as it is not a metal, though it is more analogous to them than any other group. This makes the group somewhat exceptional. b Group 18, the noble gases, were not discovered at the time of Mendeleev's original table.
What does group number mean in chemistry?
The group number tells you the total number of electrons present in the outermost orbit of an atom. In other words, group number tells you the number of valence electrons of an atom. For example, Let us consider group 1 of the Periodic table. Group 1 indicates that the elements lying in that group have only 1 electron in its outermost orbit.
What does period number mean in periodic table?
Also, the periods of periodic table indicates the number of energy orbits or energy shells of an atom. Elements of period 1 have 1 energy shell, elements of period 2 have 2 energy shells, and so on…. This is it for this topic. I hope now you know what group number and period number tells you about the atom on a Periodic table.
What does the period number tell you?
The period number on the Periodic table tells you the total number of orbits that the atom will have.
How many electrons are in a group 3?
For example, group 3 elements of d-block should have 3 electrons in outermost orbit. But they have 2 electrons in outermost orbit. Similarly, group 4 elements of d-block should have 4 electrons in outermost orbit, but they also have 2 electrons in outermost orbit.
How are elements arranged in the periodic table?
The elements are arranged according to their atomic number on the modern periodic table. The elements which are in the same groups have the same number of electrons in outermost orbit (i.e 1st group has 1 electron in outermost orbit, 2nd has 2 electrons in outermost orbit, 13th group has 3, 14th has 4, and so on…)
How many valence electrons does a group 1 element have?
In other words, group 1 elements have 1 valence electron.
What does 1 st period mean?
1 st period indicates that these elements possess 1 energy shell (or energy orbit).
