Advertisements
Advertisements
प्रश्न
How does an electron differ from a neutron?
Advertisements
उत्तर
| Electron | Neutron |
| • Relative mass is 1/1840 u | • Relative mass is 1u |
| • Absolute mass is 9 × 10–28 g | • Absolute mass is 1.602 × 10–24 g |
| • Charge is -1 | • It is neutral |
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false :
The cathode rays obtained from all the gases consist of negatively charged particles called electrons.
The atom of an element X has 7 electrons in its M shell.
What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
What could element X be?
Explain the rule according to which electrons are filled in various energy levels.
What are valence electrons?
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
Write down the electronic configuration of the following
- 2713X,
- 3517Y.
Write down the number of electrons in X and neutrons in Y and the formula of the compound formed by X and Y.[XY3]
Give a reason why noble gases have a stable electronic configuration.
Rutherford’s ‘alpha (α) particles scattering experiment’ resulted in to discovery of
Atoms of all metals will have ______ electrons in their outermost orbit.
An atom has a number of orbits and each orbit has protons.
