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प्रश्न
State the term for the following:
The amount of substance which contains the same number of units as the number of atoms in carbon-12.
उत्तर
mole
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संबंधित प्रश्न
Fill in the blank
An ion which has a positive charge is called a ..................
Fill in the blank of the following statement :
The total number of protons and neutrons in the nucleus of an atom is called its _________.
Fill in the following blanks :
| Atomic Number | Mass Number | Protons | Neutrons | Electrons | Symbol |
| 10 | 22 | _________ | _________ | _________ | _________ |
The mass number of an element is 23 and it contains 11 electrons. What is the number of protons and neutrons in it? What is the atomic number of the element?
Define the following form:
Atomic number
Draw the orbital diagram of `""_20^40"Ca"^(2+)` ion and state the number of three fundamental particles present in it.
Atomic number : ______ :: Mass number : Number of protons and neutrons.
Differentiate mass number from atomic number.
What is mass number of an atom?
Every atom has an equal number of protons and electrons. The nature of the atom is ______.
