Advertisements
Advertisements
प्रश्न
Define atomic mass of an element.
Advertisements
उत्तर
Atomic mass of an element refers to the relative mass of its atom compared to the mass of a carbon-12 atom.
(Mass of carbon-12 atom is taken to be 12 u).
APPEARS IN
संबंधित प्रश्न
An ion with mass number 37 possesses one unit of negative charge. If the ion contains 11.1% more neutrons than the electrons, find the symbol of the ion.
What is meant by saying that 'the atomic mass of oxygen is 16' ?
Define the following form:
Atomic mass number
The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
Define the term:
Mass number
What would be the reason for an element to have atoms with different mass numbers?
Give a reason for the following:
The mass number of an atom is slightly less than the actual atomic mass.
Draw the structure of oxygen and sulphur atoms.
Which of the following represents 1 amu?
The sum of the numbers of protons and neutrons of an atom is called its ______
Relative atomic mass is otherwise known as ______.
Noble gases are Diatomic.
Answer the following question using the data given below:
- Assertion: The Relative Atomic mass of aluminium is 27
- Reason: An atom of aluminium is 27 times heavier than 1/12th of the mass of the C – 12 atom.
Write the different types of isotopes of oxygen and their percentage abundance.
Calculate the % of each element in calcium carbonate. (Atomic mass: C-12, O-16, Ca -40)
Calculate the % relative abundance of B-10 and B-11, if its average atomic mass is 10.804 amu.
One electron is present in the outermost shell of the atom of an element X. What would be the nature and value of charge on the ion formed if this electron is removed from the outermost shell?
Chlorine exists in two isotopic forms, \[\ce{Cl-37}\] and \[\ce{Cl-35}\] but its atomic mass is 35.5. This indicates the ratio of \[\ce{Cl-37}\] and \[\ce{Cl-35}\] is approximately
An atom having atomic mass number 13 has 7 neutrons. What is the atomic number of the atom?
