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प्रश्न
p-block is composed of groups 1 and 2.
विकल्प
Right
Wrong
उत्तर
p-block is composed of groups 1 and 2- Wrong
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संबंधित प्रश्न
How many periods and groups are there in the long form of periodic table?
Which element has two shells, both of which are completely filled with electrons?
What is the number of valence electrons in the atoms of first elements in a period?
What is the usual number of valence electrons and valency of group 18 elements of the periodic table?
What are the groups in a periodic table? Give two characteristics of each.
An element X belongs to 3rd period and group 2 of the periodic table. State:
(a) number of valence electrons
(b) valency
(c) metal or non-metal
(d) name of the element
What are horizontal rows and vertical columns in a periodic table known as?
Name two elements in Alkali metals.
Name two elements in Alkaline earth metals.
Name two elements in halogens.
Name two elements in each case: Lanthanides
Name the type of elements which have outermost shell complete.
State its position in the periodic table?
What is the main characteristic of the last element in each period of the periodic table?
Name an alkali metal in period 3 and halogen in period 2.
Name the noble gas with 3 shells.
What is the number of elements in the 3rd period, of the modern periodic table?
Name an element of group 18 which can form compounds.
Name the cation and the anion in the salt – calcium sulphate
Give the symbol and valency of the following element and radical.
Aluminium
Give the symbol and valency of the following element and radical.
Chlorine [Chloride]
Give the symbol and valency of the following element and radical.
Nitrate
Give the chemical formula of magnesium nitrate
State the number of elements in Period 2 of the Periodic Table.
Which of the following statements about the Modern periodic table is correct?
Group 1 and 2 : s block : : group 13 and 18 : _______
The modern periodic table has 1 to 7 periods.
Complete the following flow chart.
Noble gases belong to______ group of the periodic table.
How does the property vary in periods and in groups?
Identify gas A in the following experiment.
The element which has the least tendency to lose electrons is ______
In the modern periodic table, elements are arranged according to their ______
What is the symbol of the element Tungsten?
Which of the following elements would lose an electron easily?
Choose an element from period 3 of modern periodic table that matches the description given below in instance. Give a reason for your choice.
It has same valency as Lithium.
______ group elements are called alkaline earth metals.
Spot the error:
There are 5 periods and 17 groups in the modern periodic table.
