Advertisements
Advertisements
प्रश्न
The atomic number and the mass number of sodium are 11 and 23 respectively. What information is conveyed by this statement.
Advertisements
उत्तर
Atomic number = 11; No of protons = 11
Mass number = 23 = Number of protons + Number of neutrons.
No of neutrons = 23-11 = 12.
APPEARS IN
संबंधित प्रश्न
If number of electrons in an atom is 8 and number of protons is also 8, then
- What is the atomic number of the atom? and
- What is the charge on the atom?
What is variable valency? Name two elements having variable valency and state their valencies.
TRUE \ FALSE
After the emission of a beta-particle, the atomic number of the atom increases by one.
WRITE SHORT ANSWER
Define the atomic mass number of an atom.
The atomic number of four elements A, B, C and D are 12, 13, 15 and 3 respectively. The element which cannot form a cation is :
The atomic number and mass number of sodium are 11 and 23 respectively. What information is conveyed by this statement?
State why the atomic weight of an element is also termed relative atomic mass.
Differentiate between the following term:
Atomic number and mass number
What is a neutron?
Give short answer:
what is the atomic mass number? mention its formula.
