Related Questions

In order to have constant chain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be
A Greater than 1.0
B Less than 1.0
C Equal to zero
D Equal to 1.0
The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?
A Z
B A
C A+Z
D A-Z
The oxygen atom is ________ times heavier than the hydrogen atom.
A 2
B 8
C 16
D 32
Out of the following, nucleus of __________ atom contains the largest number of neutrons.
A U-235
B U-238
C U-239
D Pu-239
উত্তেজিত অবস্থায় হাইড্রওজেন পরমাণুর কোয়ান্টাম সংখ্যা n=4 I=1 বিশিষ্ট অর্বিটালটি কি? (What is the orbital of hydrogen atom at its excited state with quantum number, n = 4, l = 1?)
A s orbital
B p orbital
C dz2  orbital
D dx2-y2
উত্তেজিত অবস্থায় হাইড্রোজেন পরমাণুর কোয়ান্টাম সংখ্যা n= 4, l= 1 বিশিষ্ট অর্বিটালটি কি? (What is the orbital of hydrogen atom at its excited state with quantum number, n= 4, l= 1 ?)
A s orbital
B p orbital
C dz2 orbital
D dx2-y2 orbital
As an atom absorbs energy, ........ increases and the atom is said to be excited.
A as its energy level
B it is energy level
C the energy level of it
D the energy level
As an atom absorbs energy , ................. increases, and the atom is said to be excited .
A its energy level
B as its energy level
C it is energy level
D the energy level of its
As an atom absorbs energy,_____ increases, and the atom is said to be excitef
A its energy level
B as its energy level
C it is energy level
D the energy level of its
If the size of the nucleus of an atom is compared with a cricket ball, then the radius of the atom is approximately equal to how many kilometres?
A 0.5
B 0.005
C 0.05
D 5

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