Advertisements
Advertisements
प्रश्न
Give the following a suitable word/phrase.
The electrons present in the outermost shell.
Advertisements
उत्तर
This outermost shell is known as the valence shell, and the electrons found in it are called valence electrons.
APPEARS IN
संबंधित प्रश्न
Give the following a suitable word/phrase.
The smallest unit of an element which takes part in a chemical reaction.
FILL IN THE BLANK
Gases become good conductors of electricity under ........ (low/high) pressure and .............. (low/high) voltage electrical discharge.
FILL IN THE BLANK
The γ-rays are............................ radiations, like light.
Tick the most appropriate answer
β-particles are actually a stream of
- protons
- electrons
- neutrons
- none of these
WRITE SHORT ANSWER
What is the charge on a neutron ?
State whether the following statement is true or false :
The anode rays obtained from all the gases consist of positively charged particles called protons.
State the location of electrons, protons and neutrons in an atom.
Define the term Valence shell.
Explain in brief – Goldstein’s experiment which led to the discovery of the proton.
Select the correct answer from the choice in the bracket to complete the sentence:
An element ‘X’ has six electrons in its outer or valence shell. Its valency is __________.
