Login
Login
Register
Questions
Unanswered
Tags
Categories
Ask a Question
Ask a Question
Recent questions tagged periodic table
+1
vote
1
answer
Why fluorine has higher E.N. than chorine?
asked
Apr 6, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+1
vote
1
answer
Explain with reasons the trends in metallic and non- metallic character down a group.
asked
Apr 6, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+1
vote
1
answer
Which ****** is considered as an incomplete ******?
asked
Apr 5, 2019
in
Class 11
by
kratos
periodic properties
class-11
periodic table
class-10
icse
variations of properties
+2
votes
1
answer
Which one of the elements — Li, Be, B, C, O, F, Ne shows the property of catenation.
asked
Apr 5, 2019
in
Chemistry
by
kratos
organic chemistry
periodicity in properties
classification of elements
class-11
periodic table
class-10
icse
periodic classification of elements
+2
votes
1
answer
In the periodic table alkali metals are placed in the group ........... (A) 1 (B) 11 (C) 17 (D) 18
asked
Apr 5, 2019
in
Class 10
by
kratos
periodic properties
properties of elements
cbse
atomic theory
periodic table
class-10
icse
periodic classification
variations of properties
periodic classification of elements
+2
votes
1
answer
There are three elements E, F, G with atomic numbers 19, 8 and 17 respectively.
asked
Apr 4, 2019
in
Class 10
by
kratos
chemical bonding
periodic properties
periodic table
class-10
icse
variations of properties
+1
vote
1
answer
(i) How many shells are there? (ii) Name the element.
asked
Mar 31, 2019
in
Class 11
by
kratos
periodicity in properties
classification of elements
periodic properties
class-11
kvpy
periodic table
class-10
icse
variations of properties
periodic classification of elements
+3
votes
1
answer
Identify the main characteristic of the elements. i. Element A has completely filled outermost shell
asked
Mar 30, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+2
votes
1
answer
In the above table – H does not represent hydrogen. Some elements are in their own symbol & position in the periodic table
asked
Mar 28, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+2
votes
1
answer
In the periodic table alkali metals are placed in the group A : 1 B : 11 C : 17
asked
Mar 27, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+2
votes
1
answer
From the following list of oxides — SO2 , SiO2 , Al2O3 , MgO, CO, Na2O - Select an oxide which dissolves in water forming an acid.
asked
Mar 23, 2019
in
Chemistry
by
kratos
periodic properties
cbse
jee
acids bases and salts
chemistry of representative elements
periodic table
class-10
icse
jee mains
periodicity of elements
variations of properties
metallurgy
+1
vote
1
answer
Fluorine, chlorine, bromine belong to same group. What is common between them?
asked
Mar 23, 2019
in
Class 11
by
kratos
cbse
properties of elements
class-11
atomic theory
periodic table
class-10
periodic classification
icse
periodic classification of elements
+1
vote
1
answer
What is meant by group in the modern periodic table ? How do the following change on moving from top to bottom in a group ?
asked
Mar 23, 2019
in
Class 10
by
kratos
periodic classification of elements
periodic table
class-10
cbse
+2
votes
1
answer
Explain the trend in atomic radii on moving down a group, with reference to the alkali metals in Group 1 [IA].
asked
Mar 23, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+3
votes
1
answer
The element B would have (lower / higher) metallic character than A.
asked
Mar 22, 2019
in
Class 12
by
kratos
periodic table
electromagnetic waves
periodic properties
class-12
class-10
icse
cbse
variations of properties
displacement current
+3
votes
1
answer
On what basis can metallic and nonmetallic properties of elements judged?
asked
Mar 22, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+2
votes
1
answer
State how density and melting points of elements varies across a ****** and down a group.
asked
Mar 21, 2019
in
Class 10
by
kratos
periodic table
periodic properties
class-10
icse
variations of properties
+3
votes
1
answer
define ionisation energy and ionisation potential distinguish between them
asked
Mar 21, 2019
in
Physics
by
kratos
classification of elements and periodicity in properties
neet
periodic properties
atomic and nuclear physics
periodic table
class-10
icse
class-12
variations of properties
+2
votes
1
answer
Arrange the following elements as per the guidelines in brackets. (1) Na,Cl; Mg, P [in decreasing order of atomic size]
asked
Mar 20, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
+1
vote
1
answer
The electronegativity: A: depends on the number of valence electrons. B: ******* the same. C: decreases.
asked
Mar 19, 2019
in
Class 10
by
kratos
periodic properties
periodic table
class-10
icse
variations of properties
To see more, click for the
full list of questions
or
popular tags
.