EASY
10th ICSE
IMPORTANT
Earn 100

A nucleus of stable phosphorus has 15 protons and 16 neutrons.

The nucleus of radio phosphorus has one neutron more than the stable nucleus. What will be its atomic number and mass number ?

Important Questions on Thermionic Emission and Radioactivity

EASY
10th ICSE
IMPORTANT

A nucleus of stable phosphorus has 15 protons and 16 neutrons.

What will be the atomic number and mass number of new nucleus formed by decay of a β-particle by the radio phosphorus in part (b) ?

EASY
10th ICSE
IMPORTANT
Complete the following sentences:
The mass number and atomic number of an element are not changed when it emits
EASY
10th ICSE
IMPORTANT

Complete the following sentences:

The atomic number of a radioactive element is not changed when it emits
EASY
10th ICSE
IMPORTANT

Complete the following sentences:

During the emission of a beta particle, the number remains same.
EASY
10th ICSE
IMPORTANT
Complete the following nuclear changes :
PxaQ+β-10
EASY
10th ICSE
IMPORTANT
Complete the following nuclear changes :
U92238Th90234+..+ Energy
EASY
10th ICSE
IMPORTANT
Complete the following nuclear changes :
 P92238αQβRβS
EASY
10th ICSE
IMPORTANT
Complete the following nuclear changes :
 XZAαX1γX22βX3