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प्रश्न
Define the term:
orbit
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उत्तर
Orbit is a circular path around the nucleus in which electrons of the atom revolve.
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संबंधित प्रश्न
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms an anion?
State one observation which shows that atom is not indivisible.
Explain fractional atomic mass. What is the fractional mass of chlorine?
Name the following:
Two atoms having the same number of protons and electrons but different number of neutrons.
Choose the correct option
Which of the following is the correct electronic configuration of potassium?
Compare :
Sodium atom and sodium ion
State the type of bond between Y and Z and give its molecular formula.
Five atoms are labelled V to Z
| Atoms | Mass Number | Atomic Number |
| V | 40 | 20 |
| W | 19 | 9 |
| X | 7 | 3 |
| Y | 16 | 8 |
| Z | 14 | 7 |
- Which one of these atoms
(1) contains 7 protons;
(2) has an electronic configuration 2, 7? - Write down the formula of the compound formed by atoms X and Y.
Sodium having atomic number 11, is ready to ______ electron/ electrons to attain the nearest noble gas electronic configuration.
| Name of compound | Type of compound | |
| a. | Sodium chloride | ______ |
| b. | ______ | co-ordinate covalent compound |
| c. | Methane | ______ |
| d. | Fluorine molecule | ______ |
