Advertisements
Advertisements
प्रश्न
What are valence electrons?
Advertisements
उत्तर
Valence electrons: The number of electrons present in the valence shell is known as valence electrons.
APPEARS IN
संबंधित प्रश्न
What is the absolute mass and charge of an electron?
All the gases from cathode rays and anode rays when electricity is passed through them :What does the formation of cathode rays tell us about the atoms?
The atom of an element X has 7 electrons in its M shell.
Is it a metal or a non-metal?
Explain the rule according to which electrons are filled in various energy levels.
Element X has electronic configurations 2, 8, 18, 8, 1. Without identifying X,
- Predict the sign and charge on a simple ion of X.
- Write if X will be an oxidizing agent or a reducing agent. Why?
If electrons are getting added to en element Y; then
What charge will Y migrate to during the process of electrolysis?
Explain the following:
Atoms combine by transfer and sharing of an electron(s).
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.
The maximum number of electrons that can be present in the N shell is ______.
