Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged the periodic properties
+2
votes
1
answer
Which element has twice as many electrons in its second shell as in its first shell?
asked
Apr 3, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
properties of elements
their variations
class-11
atomic theory
ntse
class-9
atomic structure
periodic classification
class-10
the periodic properties
icse
+2
votes
1
answer
(i) An element has an atomic number 16. State (a) the ****** to which it belongs. (b) the number of valence electronš.
asked
Mar 31, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+3
votes
1
answer
The modern periodic table has been divided into - (a) Seven periods : three short and four long
asked
Mar 27, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
periodic classification of elements
+3
votes
1
answer
Elements in a group of periodic table have similar chemical properties why ?
asked
Mar 27, 2019
in
Class 11
by
kratos
classification of elements and periodicity in properties
periodicity in properties
classification of elements
cbse
their variations
class-11
the periodic properties
class-10
icse
periodic classification of elements
+3
votes
1
answer
What is shielding effect or screening effect ? How does it govern the ionization energy of an atom ?
asked
Mar 27, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+1
vote
1
answer
Define first ionization energy and second ionization energy. Why is the second ionization energy greater than
asked
Mar 26, 2019
in
Class 12
by
kratos
amu
periodicity in properties
classification of elements and periodicity in properties
neet
classification of elements
their variations
class-11
aiims
the periodic properties
class-10
icse
+1
vote
1
answer
Study the given table carefully. Which of the observations are correctly matched?
asked
Mar 19, 2019
in
Class 10
by
kratos
cbse
their variations
the periodic properties
class-10
icse
chemical reactions and equations
periodic classification of elements
+1
vote
1
answer
What are iso-electronic ions ? Account for the decrease in size of the following is
asked
Mar 17, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+1
vote
1
answer
Arrange the following elements as directed (i) Ar, He, Ne (in increasing order of electron shells)
asked
Mar 15, 2019
in
Class 10
by
kratos
class-10
icse
their variations
the periodic properties
+3
votes
1
answer
The electronegativities (according to pauling) of the elements in ****** 3 of the portion
asked
Mar 15, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+3
votes
1
answer
The reducing power of elements decreases as on one move from left to right in a ****** ?
asked
Mar 14, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+1
vote
1
answer
What do you know about metallic character of an element ?
asked
Mar 14, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+1
vote
1
answer
(i) Name two elements in same group of Periodic Table. (ii) Name the Transition metal.
asked
Mar 12, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+2
votes
1
answer
A group of elements in the Periodic Table are given below (Boron is first member of the group
asked
Mar 11, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+2
votes
1
answer
Following statements regarding the periodic trends of chemical reactivity of the alkali metals and the halogens are given.
asked
Mar 11, 2019
in
JEE
by
kratos
periodic properties
their variations
jee
the periodic properties
class-10
icse
jee mains
periodicity of elements
+1
vote
1
answer
Why the atomic size decreases in a ****** as we move from left to right ?
asked
Mar 9, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+2
votes
1
answer
(i) What is the common feature of the electronic configurations of the elements at the end of ****** 2 and ****** 3?
asked
Mar 5, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
+2
votes
1
answer
How many vertical columns are there in the Modern Periodic Table?
asked
Feb 20, 2019
in
Class 11
by
kratos
cbse
their variations
class-11
the periodic properties
class-10
icse
periodic classification of elements
+3
votes
1
answer
Give reason: Alkali metals are good reducing agents.
asked
Feb 13, 2019
in
Class 10
by
kratos
periodic properties
their variations
periodic table
the periodic properties
class-10
icse
variations of properties
+3
votes
1
answer
Why ionization potential of the element increases across a ****** ?
asked
Feb 11, 2019
in
Class 10
by
kratos
their variations
the periodic properties
class-10
icse
To see more, click for the
full list of questions
or
popular tags
.