How many periods and groups are there in the modern periodic table?

How many periods and groups are there in the modern periodic table?
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In the modern periodic table there are 7 periods and 18 groups.
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Related questions

What are periods and groups in the modern periodic table?

Description : What are periods and groups in the modern periodic table?

Last Answer : The horizontal rows in the periodic table are called periods. The vertical columns in the periodic table are called groups.

(a) What are ‘groups’ and ‘periods’ in the ‘periodic table’? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic table. How do the following properties of M and N vary? Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

Description : (a) What are groups' and periods' in the periodic table'? (b) Two elements M and N belong to group I and II respectively and are in the same period of the periodic ... Sizes of their atoms Their metallic characters Their valencies in forming oxides Molecular formulae of their chlorides -Science

Last Answer : (a) The vertical columns in the periodic table are called groups'. The horizontal rows in the periodic table are called periods'. (b) M' and N' belong to same period but group I ... oxides. Valency goes on increasing first and then decreases. MCI, NCI2 are molecular formulae of their chlorides.

List the short period, long period and incomplete periods in the modern periodic table

Description : List the short period, long period and incomplete periods in the modern periodic table

Last Answer : Periodnumber 1st 2 nd Description Veryshort 8 elements (Li to Ne) Long 18 elements (K to Kr) Very long 32 elements (Cs to Rn) Short 5 Long 4 th 6 th 7th 2 (H & He) Short ... of elements incomplete 8 elements ( Na to Ar) 18 elements (Rb to Xe) Rest of the elements (Fr onwards)

How many groups and periods are there in periodic table?

Description : How many groups and periods are there in periodic table?

Last Answer : 18 groups and 7 Periods

How many groups and periods are found in long form periodic table?

Description : How many groups and periods are found in long form periodic table?

Last Answer : Ans: 7 periods 18 groups

The following shows a part of the periodic table containing first three periods in which five elements have been represented by the letters a, b, c, d and e.

Description : The following shows a part of the periodic table containing first three periods in which five elements have been represented by the letters a, b, c, d and e.

Last Answer : a) Select the letter which represents a metal. b) Select the letter which represents a noble gas. a) d b) c

On the periodic table how many periods are there?

Description : On the periodic table how many periods are there?

Last Answer : Th horizontal rows are referred as periods. There are 7 periods in Periodic Table.

What are the periods in Mendeleev's periodic table?

Description : What are the periods in Mendeleev's periodic table?

Last Answer : Because some of the elements were not yet discovered so he left them blank for other elements to be discovered. -bobby corner

What are the periods in Mendeleev's periodic table?

Description : What are the periods in Mendeleev's periodic table?

Last Answer : Because some of the elements were not yet discovered so he left them blank for other elements to be discovered. -bobby corner

How many groups are there in the mod- ern periodic table?

Description : How many groups are there in the mod- ern periodic table?

Last Answer : Eighteen

Where are the smallest atoms seen at the modern periodic table?

Description : Where are the smallest atoms seen at the modern periodic table?

Last Answer : Right hand top

Modern periodic table was developed by?

Description : Modern periodic table was developed by?

Last Answer : Henry Moseley

Modern periodic table was discovered by?

Description : Modern periodic table was discovered by?

Last Answer : Henry Moseley

Modern periodic table contains?

Description : Modern periodic table contains?

Last Answer : 7 horizontal rows and 18 vertical columns

The modern periodic table is based on?

Description : The modern periodic table is based on?

Last Answer : atomic number

In the modern periodic table, the elements are arranged in the ascending order of their

Description : In the modern periodic table, the elements are arranged in the ascending order of their

Last Answer : atomic number.

The modern periodic table was adopted by IUPAC in

Description : The modern periodic table was adopted by IUPAC in

Last Answer : 1984.

How does the electronic configuration of an atom relate to its position in the modern periodic table?

Description : How does the electronic configuration of an atom relate to its position in the modern periodic table?

Last Answer : The group number of elements having up to two valence electrons is equal to the number of valence electrons. For example: Group 1 elements have 1 valence electron. Group 2 elements have 2 valence electrons. Group 13 elements have 3 valence electrons.

Compare the arrangement of elements in Mendeleev’s and Modern periodic table.

Description : Compare the arrangement of elements in Mendeleev’s and Modern periodic table.

Last Answer : Mendeleev’s periodic table Modern periodic table 1. Elements are arranged in the order of increasing atomic masses. 1. Elements are arranged in the order of increasing atomic numbers.

Mention the characteristics of modern periodic table.

Description : Mention the characteristics of modern periodic table.

Last Answer : When elements are arranged according to increasing atomic numbers, elements having similar properties are kept in the same group. There is a inter relation between electronic configuration and ... elements are arranged in 7 horizontal rows called periods and 18 vertical columns called groups

How many rows and columns are in the modern Periodic Table? A. 18 columns and 7 rows (Answer) B. 12 columns and 9 rows C. 7 columns and 18 rows D. 25 columns and 15 rows

Description : How many rows and columns are in the modern Periodic Table? A. 18 columns and 7 rows (Answer) B. 12 columns and 9 rows C. 7 columns and 18 rows D. 25 columns and 15 rows

Last Answer : A. 18 columns and 7 rows (Answer)

MODERN PERIODIC TABLE

Description : MODERN PERIODIC TABLE

Last Answer :  The chemical and physical properties of elements are a periodic function of their atomic numbers.  The periodic table based on modern periodic law is called as Modern Periodic ... table disappears.  Elements are classified according to their electronic configuration. Into different blocks.

How many groups are there in the periodic table ?

Description : How many groups are there in the periodic table ?

Last Answer : There are 18 groups in the periodic table .

Ozone belongs to which groups of the periodic table?

Description : Ozone belongs to which groups of the periodic table?

Last Answer : Ozone belongs to which groups of the periodic table? A. IVA B. VA C. VIA D. VIIA

What groups of elements should have very different chemical properties in the periodic table?

Description : What groups of elements should have very different chemical properties in the periodic table?

Last Answer : Feel Free to Answer

What are the names of the 8 groups in the periodic table?

Description : What are the names of the 8 groups in the periodic table?

Last Answer : alkali metals, alkali earth metals, halogens, noble gases, transition metals and there are only 5 not 8

What are the names of the 8 groups in the periodic table?

Description : What are the names of the 8 groups in the periodic table?

Last Answer : alkali metals, alkali earth metals, halogens, noble gases, transition metals and there are only 5 not 8

Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B Elements of Group 16 occur as cations in ionic compounds. C Oxides of elements in Groups 16 and 17 are basic. D The halogens (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.

Description : Which one of the following statements concerning elements in the Periodic Table is correct? A Elements of the same group all have the same number of electrons in the outermost occupied electron shell. B ... (Group 17) are all gases at room temperature. E The Group 13 elements are all metals.

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Which is the basis of modern periodic table? -Do You Know?

Description : Which is the basis of modern periodic table? -Do You Know?

Last Answer : answer:

What is the main basis of modern periodic table ?

Description : What is the main basis of modern periodic table ?

Last Answer : The true basis of the modern periodic table is the electron configuration.

How many elements did Mendeleev introduce the modern periodic table ?

Description : How many elements did Mendeleev introduce the modern periodic table ?

Last Answer : Mendeleev introduced the modern periodic table with 67 elements.

Who is the father of modern periodic table ?

Description : Who is the father of modern periodic table ?

Last Answer : Mendeleev, the father of the modern periodic table.

Hydrogen occupies a unique position in Modern Periodic Table". Justify the statement.

Description : Hydrogen occupies a unique position in Modern Periodic Table". Justify the statement.

Last Answer : Hydrogen occupies a unique position in Modern Periodic Table". Justify the statement.

How many horizontal rows and vertical columns are present in the modern periodic table?

Description : How many horizontal rows and vertical columns are present in the modern periodic table?

Last Answer : How many horizontal rows and vertical columns are present in the modern periodic table?

In modern periodic table, the period number indicates the :

Description : In modern periodic table, the period number indicates the :

Last Answer : In modern periodic table, the period number indicates the : a. atomic number b. atomic ... . principal quantum number d. azimuthal quantum number

In which group of elements of the modern periodic table are halogen placed ?

Description : In which group of elements of the modern periodic table are halogen placed ?

Last Answer : In which group of elements of the modern periodic table are halogen placed? a. 17 b. 6 c. 4 d. 2

Who invented the modern Periodic table? (1) Faraday (2) Mendeleev (3) Newton (4) Bohr

Description : Who invented the modern Periodic table? (1) Faraday (2) Mendeleev (3) Newton (4) Bohr

Last Answer : (2) Mendeleev Explanation: Dmitri Mendeleev was a Russian chemist who developed the periodic classification of the elements in 1869 A.D.

Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table

Description : Iron which resembles Cobalt and Nickel in properties has been placed far away from these elements. This was one of the limitations of : (1) Modern periodic table (2) Newland's law of octaves (3) Dobereiner's triads (4) Mendeleev's periodic table

Last Answer : (2) Newland's law of octaves Explanation: Among the major limitations of Newlands Law of Octaves, some similar elements have been separated from one another while some dissimilar elements have been placed in the same column.

Which is the basis of modern periodic table?

Description : Which is the basis of modern periodic table?

Last Answer : Atomic number

Explain the Modern Periodic Law , also define salient features of modern periodic table

Description : Explain the Modern Periodic Law , also define salient features of modern periodic table

Last Answer : Ans : Modern Periodic Law : Based on the concept of atomic number Bohr , Werner & Bury proposed the modern periodic law as ; The physical & chemical properties of all elements are ... periods. The physical & chemical properties of elements change from metallic to non metallic along a period.

Let x1(t) and x2(t) be periodic with fundamental periods T1 and T2 respectively. Under what

Description : Let x1(t) and x2(t) be periodic with fundamental periods T1 and T2 respectively. Under what condition be the sum x(t) = x1(t) + x2(t) be periodic ? (A) Only for T1 = T2 (B) Always periodic (C) For T1/T2 equal to a rational number (D) Not periodic

Last Answer : Let x1(t) and x2(t) be periodic with fundamental periods T1 and T2 respectively. Under what condition be the sum x(t) = x1(t) + x2(t) be periodic ? (A) Only for T1 = T2 (B) Always periodic (C) For T1/T2 equal to a rational number (D) Not periodic

There are 18 groups and 7 periods

Description : There are 18 groups and 7 periods

Last Answer : in the modern periodic table

How are groups and periods classified in chemistry?

Description : How are groups and periods classified in chemistry?

Last Answer : answer:The periodic table rocks. While we do not do homework here I want to encourage you to explore it. Each element has a history and unique properties. This is just one of many awesome sites that can help you appreciate and understand the elements.

Which situation would would be more likely to occur in the modern era than in earlier periods of human history?

Description : Which situation would would be more likely to occur in the modern era than in earlier periods of human history?

Last Answer : A student in Japan practices English by talking with students in Ireland over the internet.

Modern periodic laws were put forward by?

Description : Modern periodic laws were put forward by?

Last Answer : Moseley

State Modern periodic law.

Description : State Modern periodic law.

Last Answer : Modern periodic law states that “The properties of elements are a periodic function of their atomic number”.

For how many metals of `10^(th)`12 th and `14^(th)` groups in periodic chart, Extraction is possible by self - reduction mrthod ?

Description : For how many metals of `10^(th)`12 th and `14^(th)` groups in periodic chart, Extraction is possible by self - reduction mrthod ?

Last Answer : For how many metals of `10^(th)`12 th and `14^(th)` groups in periodic chart, Extraction is possible by self - reduction mrthod ?

The a-helix of proteins is (A) A pleated structure (B) Made periodic by disulphide bridges (C) A non-periodic structure (D) Stabilised by hydrogen bonds between NH and CO groups of the main chain

Description : The a-helix of proteins is (A) A pleated structure (B) Made periodic by disulphide bridges (C) A non-periodic structure (D) Stabilised by hydrogen bonds between NH and CO groups of the main chain

Last Answer : Answer : C

Nonadherence to therapeutic regimens is a significant problem for which of the following age groups? a) Adults 65 and over Elderly people frequently have one or more chronic illnesses that are managed with numerous medications and complicated by periodic acute episodes, making adherence difficult. b) Teenagers Problems of teenagers, generally, are time limited and specific, and require promoting adherence to treatment to return to health. c) Children In general, the compliance of children depends on the compliance of their parents. d) Middle-aged adults Middle-aged adults, in general, have fewer health problems, thus promoting adherence.

Description : Nonadherence to therapeutic regimens is a significant problem for which of the following age groups? a) Adults 65 and over Elderly people frequently have one or more chronic illnesses that are ... -aged adults Middle-aged adults, in general, have fewer health problems, thus promoting adherence.

Last Answer : a) Adults 65 and over Elderly people frequently have one or more chronic illnesses that are managed with numerous medications and complicated by periodic acute episodes, making adherence difficult.

State modern periodic law.

Description : State modern periodic law.

Last Answer : State modern periodic law.