Advertisements
Advertisements
प्रश्न
What is an electron? State its relative mass and charge.
Advertisements
उत्तर
An electron (e−) is a fundamental subatomic particle with a negative elementary electric charge. Its mass is 1/1840th of that of a hydrogen atom.
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.
Write down the number of electrons in X and neutrons in Y.
What are valence electrons?
Name or state the following:
Ion formed by the gain of an electron(s)
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.
Give a simple diagram to show the arrangement of the electrons in an atom of sulphur.
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.
Cathode rays are made up of
Helium has two electrons in the outermost orbit and so it is chemically inert.
