|
Fill in the blanks
|
|
1
|
842
|
November 26, 2016
|
|
Why is it almost impossible to find such an atom in nature?
|
|
1
|
2240
|
November 26, 2016
|
|
If the mass of a proton is 1.67x${{10}^{-27}}$ kg
|
|
1
|
3828
|
November 26, 2016
|
|
A metal (mass number = 40) having same number of protons and neutrons,
|
|
1
|
2113
|
November 26, 2016
|
|
Find the valency of element M
|
|
1
|
1150
|
November 26, 2016
|
|
Find the mass number of both the ions
|
|
1
|
2204
|
November 26, 2016
|
|
Elements from A to F have the distribution of electrons
|
|
1
|
4988
|
November 26, 2016
|
|
Which one will have higher valency?
|
|
1
|
683
|
November 26, 2016
|
|
Chlorine occurs in nature in two isotopic forms with masses 35 u and 37 u
|
|
1
|
4644
|
November 26, 2016
|
|
How can you justify that cathode rays originate from the cathode whereas anode rays do not?
|
|
0
|
3299
|
November 26, 2016
|
|
Identify that which of the following pairs are isotopes and which are isobars?
|
|
1
|
2885
|
November 26, 2016
|
|
List down three different names given to the path in which electrons revolve around the nucleus
|
|
1
|
2885
|
November 26, 2016
|
|
Write the name of an element whose atom has same number of sub-atomic particles
|
|
1
|
10133
|
November 26, 2016
|
|
What would be the valency of element C listed in the above table?
|
|
1
|
3501
|
November 26, 2016
|
|
On the basis of the number of protons, neutrons and electrons in the samples given below identify
|
|
1
|
5689
|
November 26, 2016
|
|
Write the electronic distribution of atoms of element A and D
|
|
1
|
3550
|
November 26, 2016
|
|
Which particles represent a pair of isotopes? Explain
|
|
1
|
1758
|
November 26, 2016
|
|
Complete following table:
|
|
1
|
802
|
November 26, 2016
|
|
What information do you get from the figure about the atomic number
|
|
1
|
3014
|
November 26, 2016
|
|
State electronic configuration
|
|
1
|
628
|
November 26, 2016
|
|
Write the conclusions drawn by Rutherford
|
|
1
|
1998
|
November 26, 2016
|
|
Name the three subatomic particles of an atom
|
|
1
|
4082
|
November 26, 2016
|
|
Find out the valency of atoms represented by the following figures
|
|
1
|
1563
|
November 26, 2016
|
|
Why is atomic mass of chlorine taken as 35.5 u and not a whole number like 35 u or 36 u? Explain
|
|
0
|
2985
|
November 26, 2016
|
|
Calculate the average mass number of copper on the basis of given information
|
|
1
|
594
|
November 26, 2016
|
|
What do the subscripts (lower figures) and superscripts (upper figures) represent?
|
|
1
|
1308
|
November 26, 2016
|
|
What are scintillations?
|
|
0
|
533
|
November 26, 2016
|
|
Show the distribution of electrons
|
|
1
|
670
|
November 26, 2016
|
|
\Why are electrons known as planetary electrons?
|
|
0
|
2318
|
November 26, 2016
|
|
Why charge to mass ratio of anode rays
|
|
1
|
1532
|
November 26, 2016
|