Class: X Weekend Test – Atomic
Structure
SUB: Chemistry
Marks: 25
Section – I 2 x 5 = 10
Answer the following:
Write about quantum theory of
radiation?- Write about Spin quantum number.
- Write
the drawbacks of
- Define a) Atomic Model b) Nucleus.
- Why is
Section – III 5
x 2 = 10
Answer the following:
- State the postulates of Bohr’s Model of an atom and write its drawbacks.
- Write about modern concept of Atomic structure.
Section
IV 5 x 1 = 5
Fill In The Blanks:
1. Charge
of an electron is ____________.
2. Orbitals
of same energy are called _____________.
3. Dual
nature of electron was proposed by _____________.
4. Solutions
of _____________ gave birth to the concept of atomic orbital.
5. The
number of sub-energy levels in a given shell is equal to _______________.
