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Recent questions tagged periodic
1
answer
Compare and contrast the arrangement of elements in Mendeleev's Periodic Table and the Modern Periodic Table.
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Pari
|
3
views
class10
ncert
periodic
classification
of
element
1
answer
In the Modern Periodic Table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38.
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Pari
|
4
views
class10
ncert
periodic
classification
of
element
1
answer
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
3
views
class10
ncert
periodic
classification
of
element
1
answer
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
6
views
class10
ncert
periodic
classification
of
element
1
answer
The position of three elements A, B and C in the Periodic Table are shown below:-
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
6
views
class10
ncert
periodic
classification
of
element
1
answer
An atom has electronic configuration 2, 8, 7. To which of the following elements would it be chemically similar?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
5
views
class10
ncert
periodic
classification
of
element
1
answer
An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
6
views
class10
ncert
periodic
classification
of
element
1
answer
What property do all elements in the same column of the Periodic Table as fluorine have in common?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
6
views
class10
ncert
periodic
classification
of
element
1
answer
What property do all elements in the same column of the Periodic Table as boron have in common?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
8
views
class10
ncert
periodic
classification
of
element
1
answer
Which element has twice as many electrons in its second shell as in its first shell?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
5
views
class10
ncert
periodic
classification
of
element
1
answer
Which element has a total of two shells, with three electrons in its valence shell?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
15
views
class10
ncert
periodic
classification
of
element
1
answer
Which element has a total of three shells, with four electrons in its valence shell?
asked
Aug 17, 2021
in
Periodic Classification of Elements
by
Saumya
|
4
views
class10
ncert
periodic
classification
of
element
1
answer
Which element has the electronic configuration 2, 8, 2?
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
7
views
class10
ncert
periodic
classification
of
element
1
answer
Which element has two shells, both of which are completely filled with electrons?
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
4
views
class10
ncert
periodic
classification
of
element
1
answer
Element X forms a chloride with the formula XCl_2, which is a solid with a high melting point. X
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
4
views
class10
ncert
periodic
classification
of
element
1
answer
Which of the following statements is not a correct statement about the trends when going from left to right across the periods of periodic Table.
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
20
views
class10
ncert
periodic
classification
of
element
1
answer
By considering their position in the Periodic Table, which one of the following elements would you expect to have maximum metallic characteristic?
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
5
views
class10
ncert
periodic
classification
of
element
1
answer
In the Modern Periodic Table, which are the metals among the first ten elements?
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
10
views
class10
ncert
periodic
classification
of
element
1
answer
Helium is an unreactive gas and neon is a gas of extremely low reactivity. What, if anything, do their atoms have in common?
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
15
views
class10
ncert
periodic
classification
of
element
1
answer
Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements?
asked
Aug 16, 2021
in
Periodic Classification of Elements
by
Pari
|
7
views
class10
ncert
periodic
classification
of
element
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