|
Fill in the blanks
|
|
1
|
808
|
November 26, 2016
|
|
Why is it almost impossible to find such an atom in nature?
|
|
1
|
2121
|
November 26, 2016
|
|
If the mass of a proton is 1.67x${{10}^{-27}}$ kg
|
|
1
|
3636
|
November 26, 2016
|
|
A metal (mass number = 40) having same number of protons and neutrons,
|
|
1
|
1996
|
November 26, 2016
|
|
Find the valency of element M
|
|
1
|
1097
|
November 26, 2016
|
|
Find the mass number of both the ions
|
|
1
|
2112
|
November 26, 2016
|
|
Elements from A to F have the distribution of electrons
|
|
1
|
4721
|
November 26, 2016
|
|
Which one will have higher valency?
|
|
1
|
611
|
November 26, 2016
|
|
Chlorine occurs in nature in two isotopic forms with masses 35 u and 37 u
|
|
1
|
4565
|
November 26, 2016
|
|
How can you justify that cathode rays originate from the cathode whereas anode rays do not?
|
|
0
|
3210
|
November 26, 2016
|
|
Identify that which of the following pairs are isotopes and which are isobars?
|
|
1
|
2794
|
November 26, 2016
|
|
List down three different names given to the path in which electrons revolve around the nucleus
|
|
1
|
2820
|
November 26, 2016
|
|
Write the name of an element whose atom has same number of sub-atomic particles
|
|
1
|
9349
|
November 26, 2016
|
|
What would be the valency of element C listed in the above table?
|
|
1
|
3344
|
November 26, 2016
|
|
On the basis of the number of protons, neutrons and electrons in the samples given below identify
|
|
1
|
4731
|
November 26, 2016
|
|
Write the electronic distribution of atoms of element A and D
|
|
1
|
3356
|
November 26, 2016
|
|
Which particles represent a pair of isotopes? Explain
|
|
1
|
1618
|
November 26, 2016
|
|
Complete following table:
|
|
1
|
750
|
November 26, 2016
|
|
What information do you get from the figure about the atomic number
|
|
1
|
2909
|
November 26, 2016
|
|
State electronic configuration
|
|
1
|
588
|
November 26, 2016
|
|
Write the conclusions drawn by Rutherford
|
|
1
|
1937
|
November 26, 2016
|
|
Name the three subatomic particles of an atom
|
|
1
|
4016
|
November 26, 2016
|
|
Find out the valency of atoms represented by the following figures
|
|
1
|
1430
|
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
|
2935
|
November 26, 2016
|
|
Calculate the average mass number of copper on the basis of given information
|
|
1
|
535
|
November 26, 2016
|
|
What do the subscripts (lower figures) and superscripts (upper figures) represent?
|
|
1
|
1258
|
November 26, 2016
|
|
What are scintillations?
|
|
0
|
500
|
November 26, 2016
|
|
Show the distribution of electrons
|
|
1
|
629
|
November 26, 2016
|
|
\Why are electrons known as planetary electrons?
|
|
0
|
2261
|
November 26, 2016
|
|
Why charge to mass ratio of anode rays
|
|
1
|
1492
|
November 26, 2016
|