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प्रश्न
Dalton said that ______ could not be divided.
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उत्तर
Dalton said that atoms could not be divided.
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संबंधित प्रश्न
Fill in the blank
An ion which has a positive charge is called a ..................
Multiple Choice Questions
The sub atomic particle with negative charge is
Multiple Choice Questions
If the atomic number of an atom is 17 and mass number is 35 then number of neutron will be
The atomic number and the mass number of sodium are 11 and 23 respectively. What information is conveyed by this statement.
Fill in the blanks- The number of protons in the nucleus of an atom is called its ....................
Fill in the following blanks in respect of an atom of an element
| No. of protons | No. of neutron | Mass number | Atomic number | No. of electrons | Symbol |
| 11 | 12 | ___________ | ___________ | ___________ | ________ |
What is the significance of atomic numbers in the modern Periodic Table?
The atom of an element is made up of 4 protons, 5 neutrons and 4 electrons. What are its atomic number and mass number?
An atom of an element has two electrons in the M shell.
What is the (a) atomic number (b) number of protons in this element?
Ca2+ has completely filled outer shell. Justify your answer.
